diff --git a/bddy.js b/bddy.js
index 8d3bca31f..7017e717f 100644
--- a/bddy.js
+++ b/bddy.js
@@ -86,6 +86,7 @@ module.exports = function(ctx, forany, argv, bddy) {
 	forany.file(`build/kanji0`).def(ctx.ensureDir);
 	forany.file(`build/punct0`).def(ctx.ensureDir);
 	forany.file(`build/pass0`).def(ctx.ensureDir);
+	forany.file(`build/ws0`).def(ctx.ensureDir);
 	forany.file(`build/pass1`).def(ctx.ensureDir);
 	forany.file(`build/out`).def(ctx.ensureDir);
 	forany.file(`build/ttc`).def(ctx.ensureDir);
@@ -111,13 +112,15 @@ module.exports = function(ctx, forany, argv, bddy) {
 	});
 	forany.file(`build/pass1/*.ttf`).def(async function(target) {
 		await this.check(`${target.dir}`);
-		const [$1, $2] = await this.need(
+		const [$1, $2, $3] = await this.need(
 			`sources/iosevka/iosevka-${styleOf(target.name)}.ttf`,
-			`build/punct0/${deItalizedNameOf(target.name)}.ttf`
+			`build/punct0/${deItalizedNameOf(target.name)}.ttf`,
+			`build/ws0/${deItalizedNameOf(target.name)}.ttf`
 		);
 		await runBuildTask.call(this, "build-pass1/build.js", {
 			main: $1,
 			asian: $2,
+			ws: $3,
 			o: target + ".tmp.ttf",
 			italize: deItalizedNameOf(target.name) === target.name ? false : true
 		});
@@ -127,7 +130,15 @@ module.exports = function(ctx, forany, argv, bddy) {
 		await this.check(`${target.dir}`);
 		const [$1] = await this.need(`sources/shs/${target.name}.otf`);
 		const tmpOTD = `${target.dir}/${target.name}.otd`;
-		await runBuildTask.call(this, "build-punct/build.js", { main: $1, o: tmpOTD });
+		await runBuildTask.call(this, "build-punct/as.js", { main: $1, o: tmpOTD });
+		await this.run("otfccbuild", tmpOTD, "-o", target, "-q");
+		await this.rm(tmpOTD);
+	});
+	forany.file(`build/ws0/*.ttf`).def(async function(target) {
+		await this.check(`${target.dir}`);
+		const [$1] = await this.need(`sources/shs/${target.name}.otf`);
+		const tmpOTD = `${target.dir}/${target.name}.otd`;
+		await runBuildTask.call(this, "build-punct/ws.js", { main: $1, o: tmpOTD });
 		await this.run("otfccbuild", tmpOTD, "-o", target, "-q");
 		await this.rm(tmpOTD);
 	});
diff --git a/build-pass1/build.js b/build-pass1/build.js
index c9cceae2d..6245232ed 100644
--- a/build-pass1/build.js
+++ b/build-pass1/build.js
@@ -1,6 +1,12 @@
 "use strict";
 
-const { quadify, introduce, build, gc, merge: { above: merge } } = require("megaminx");
+const {
+	quadify,
+	introduce,
+	build,
+	gc,
+	merge: { above: mergeAbove, below: mergeBelow }
+} = require("megaminx");
 const { isKanji } = require("caryll-iddb");
 const italize = require("../common/italize");
 
@@ -15,6 +21,11 @@ async function pass(ctx, config, argv) {
 		prefix: "b",
 		ignoreHints: true
 	});
+	const c = await ctx.run(introduce, "c", {
+		from: argv.ws,
+		prefix: "c",
+		ignoreHints: true
+	});
 
 	// vhea
 	a.vhea = b.vhea;
@@ -27,7 +38,9 @@ async function pass(ctx, config, argv) {
 	if (argv.italize) italize(b, 10);
 
 	// merge and build
-	await ctx.run(merge, "a", "a", "b", { mergeOTL: true });
+	await ctx.run(mergeBelow, "a", "a", "c", { mergeOTL: true });
+	await ctx.run(mergeAbove, "a", "a", "b", { mergeOTL: true });
+
 	await ctx.run(gc, "a");
 	await ctx.run(build, "a", { to: config.o, optimize: true });
 }
diff --git a/build-punct/as.js b/build-punct/as.js
new file mode 100644
index 000000000..8186c10d5
--- /dev/null
+++ b/build-punct/as.js
@@ -0,0 +1,31 @@
+"use strict";
+
+const { quadify, introduce, build, gc, manip: { glyph: glyphManip } } = require("megaminx");
+const { isKanji } = require("caryll-iddb");
+const { isWestern, isWS, isKorean, sanitizeSymbols, removeUnusedFeatures } = require("./common");
+
+async function pass(ctx, config, argv) {
+	const a = await ctx.run(introduce, "a", {
+		from: argv.main,
+		prefix: "a",
+		ignoreHints: true
+	});
+	await ctx.run(quadify, "a");
+	a.cmap_uvs = null;
+	for (let c in a.cmap) {
+		if (isKanji(c - 0) || isWestern(c - 0) || isKorean(c - 0) || isWS(c - 0)) {
+			a.cmap[c] = null;
+		}
+	}
+
+	removeUnusedFeatures(ctx.items.a);
+	await ctx.run(gc, "a", { ignoreAltSub: true });
+	await ctx.run(glyphManip, "a", sanitizeSymbols, config);
+
+	await ctx.run(build, "a", { to: config.o, optimize: true });
+	ctx.remove("a");
+}
+
+module.exports = async function makeFont(ctx, config, argv) {
+	await pass(ctx, { o: argv.o }, argv);
+};
diff --git a/build-punct/build.js b/build-punct/build.js
deleted file mode 100644
index a830e49ac..000000000
--- a/build-punct/build.js
+++ /dev/null
@@ -1,56 +0,0 @@
-"use strict";
-
-const { quadify, introduce, build, gc, manip: { glyph: glyphManip } } = require("megaminx");
-const { isKanji } = require("caryll-iddb");
-
-function isWestern(c) {
-	return c < 0x2000;
-}
-
-function isKorean(c) {
-	return (
-		(c >= 0xac00 && c <= 0xd7af) ||
-		(c >= 0x3130 && c <= 0x318f) ||
-		(c >= 0x3200 && c <= 0x321e) ||
-		(c >= 0xffa1 && c <= 0xffdc) ||
-		(c >= 0x3260 && c <= 0x327f) ||
-		(c >= 0xa960 && c <= 0xd7ff)
-	);
-}
-
-async function sanitizeSymbols(config) {
-	for (let g in this.font.glyf) {
-		const glyph = this.font.glyf[g];
-		if (!glyph) continue;
-		const targetW = Math.ceil(glyph.advanceWidth / (this.em / 2)) * (this.em / 2);
-		const shift = (targetW - glyph.advanceWidth) / 2;
-		if (!glyph.contours) continue;
-		for (let c of glyph.contours) for (let z of c) z.x += shift;
-		glyph.advanceWidth = targetW;
-	}
-}
-
-async function pass(ctx, config, argv) {
-	const a = await ctx.run(introduce, "a", {
-		from: argv.main,
-		prefix: "a",
-		ignoreHints: true
-	});
-	await ctx.run(quadify, "a");
-	a.cmap_uvs = null;
-	for (let c in a.cmap) {
-		if (isKanji(c - 0) || isWestern(c - 0) || isKorean(c - 0)) {
-			a.cmap[c] = null;
-		}
-	}
-
-	await ctx.run(gc, "a");
-	await ctx.run(glyphManip, "a", sanitizeSymbols, config);
-
-	await ctx.run(build, "a", { to: config.o, optimize: true });
-	ctx.remove("a");
-}
-
-module.exports = async function makeFont(ctx, config, argv) {
-	await pass(ctx, { o: argv.o }, argv);
-};
diff --git a/build-punct/common.js b/build-punct/common.js
new file mode 100644
index 000000000..2e34755f6
--- /dev/null
+++ b/build-punct/common.js
@@ -0,0 +1,97 @@
+"use strict";
+
+exports.isWestern = c => c <= 0x2000;
+exports.isKorean = c =>
+	(c >= 0xac00 && c <= 0xd7af) ||
+	(c >= 0x3130 && c <= 0x318f) ||
+	(c >= 0x3200 && c <= 0x321e) ||
+	(c >= 0xffa1 && c <= 0xffdc) ||
+	(c >= 0x3260 && c <= 0x327f) ||
+	(c >= 0xa960 && c <= 0xd7ff);
+
+exports.isWS = c => c >= 0x20a0 && c < 0x3000 && !(c >= 0x2e3a && c <= 0x2e3b);
+
+function deleteGPOS(font, gid) {
+	if (!font.GPOS) return;
+	for (let l in font.GPOS.lookups) {
+		let lut = font.GPOS.lookups[l];
+		switch (lut.type) {
+			case "gpos_single":
+				for (let st of lut.subtables) st[gid] = null;
+				break;
+		}
+	}
+}
+
+const sanitizers = {};
+sanitizers.auto = function(glyph) {
+	const targetW = Math.ceil(glyph.advanceWidth / (this.em / 2)) * (this.em / 2);
+	const shift = (targetW - glyph.advanceWidth) / 2;
+	if (!glyph.contours) return;
+	for (let c of glyph.contours) for (let z of c) z.x += shift;
+	glyph.advanceWidth = targetW;
+};
+sanitizers.halfLeft = function(glyph, gid) {
+	glyph.advanceWidth = this.em / 2;
+	deleteGPOS(this.font, gid);
+};
+sanitizers.halfRight = function(glyph, gid) {
+	if (!glyph.contours) return;
+	for (let c of glyph.contours) for (let z of c) z.x -= glyph.advanceWidth - this.em / 2;
+	glyph.advanceWidth = this.em / 2;
+	deleteGPOS(this.font, gid);
+};
+sanitizers.halfComp = function(glyph, gid) {
+	const targetW = Math.round(glyph.advanceWidth / this.em) * (this.em / 2);
+	if (!glyph.contours) return;
+	for (let c of glyph.contours) for (let z of c) z.x *= targetW / glyph.advanceWidth;
+	glyph.advanceWidth = targetW;
+	deleteGPOS(this.font, gid);
+};
+
+const sanitizerTypes = {
+	"“": "halfRight",
+	"‘": "halfRight",
+	"’": "halfLeft",
+	"”": "halfLeft",
+	"—": "halfComp",
+	"\u2013": "halfComp",
+	"\u2011": "halfComp",
+	"\u2012": "halfComp",
+	"\u2010": "halfComp",
+	"\u2e3a": "halfComp",
+	"\u2e3b": "halfComp"
+};
+
+async function sanitizeSymbols(config) {
+	let san = new Map();
+	for (let c in this.font.cmap) {
+		if (!this.font.cmap[c]) continue;
+		const stt = sanitizerTypes[String.fromCodePoint(c - 0)];
+		if (stt) san.set(this.font.cmap[c], stt);
+	}
+	for (let g in this.font.glyf) {
+		let sanitizer = sanitizers[san.has(g) ? san.get(g) : "auto"];
+		const glyph = this.font.glyf[g];
+		if (!glyph) continue;
+		sanitizer.call(this, glyph, g);
+	}
+}
+exports.sanitizeSymbols = sanitizeSymbols;
+
+exports.removeUnusedFeatures = function(a) {
+	for (let f in a.GSUB.features) {
+		if (
+			f.slice(0, 4) === "pwid" ||
+			f.slice(0, 4) === "hwid" ||
+			f.slice(0, 4) === "fwid" ||
+			f.slice(0, 4) === "twid" ||
+			f.slice(0, 4) === "qwid"
+		) {
+			for (let l of a.GSUB.features[f]) {
+				a.GSUB.lookups[l] = null;
+			}
+			a.GSUB.features[f] = null;
+		}
+	}
+};
diff --git a/build-punct/ws.js b/build-punct/ws.js
new file mode 100644
index 000000000..274410024
--- /dev/null
+++ b/build-punct/ws.js
@@ -0,0 +1,30 @@
+"use strict";
+
+const { quadify, introduce, build, gc, manip: { glyph: glyphManip } } = require("megaminx");
+const { isKanji } = require("caryll-iddb");
+const { isWestern, isWS, isKorean, sanitizeSymbols, removeUnusedFeatures } = require("./common");
+
+async function pass(ctx, config, argv) {
+	const a = await ctx.run(introduce, "a", {
+		from: argv.main,
+		prefix: "a",
+		ignoreHints: true
+	});
+	await ctx.run(quadify, "a");
+	a.cmap_uvs = null;
+	for (let c in a.cmap) {
+		if (isKanji(c - 0) || isWestern(c - 0) || isKorean(c - 0) || !isWS(c - 0)) {
+			a.cmap[c] = null;
+		}
+	}
+	removeUnusedFeatures(ctx.items.a);
+	await ctx.run(gc, "a", { ignoreAltSub: true });
+	await ctx.run(glyphManip, "a", sanitizeSymbols, config);
+
+	await ctx.run(build, "a", { to: config.o, optimize: true });
+	ctx.remove("a");
+}
+
+module.exports = async function makeFont(ctx, config, argv) {
+	await pass(ctx, { o: argv.o }, argv);
+};
diff --git a/package.json b/package.json
index 1ee3896d9..eb77b423a 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
 		"ideohint": "^0.99.4",
 		"inquirer": "^3.2.3",
 		"inquirer-file-path": "^1.0.0",
-		"megaminx": "^0.4.3",
+		"megaminx": "^0.4.5",
 		"otfcc-ttcize": "^0.5.0",
 		"scc-config": "^0.8.1",
 		"which": "^1.2.14",