diff --git a/chunkie/+chnk/+flam/kernbyindexr.m b/chunkie/+chnk/+flam/kernbyindexr.m
index a03fa2a..b280657 100644
--- a/chunkie/+chnk/+flam/kernbyindexr.m
+++ b/chunkie/+chnk/+flam/kernbyindexr.m
@@ -53,16 +53,22 @@
 srcinfo.n = nj;
 % Assign appropriate object to targinfo
 targinfo = [];
-if isa(targobj, "chunker")
+if isa(targobj, "chunker") || isa(targobj, "chunkgraph")
     targinfo.r = targobj.r(:,iuni);
     targinfo.d = targobj.d(:,iuni);
     targinfo.d2 = targobj.d2(:,iuni);
     targinfo.n = targobj.n(:,iuni);
-elseif isa(targobj, "chunkgraph")
+elseif isstruct(targobj)
+    if isfield(targobj,'d')
+        targinfo.d = targobj.d(:,iuni);
+    end
+    if isfield(targobj,'d2')
+        targinfo.d = targobj.d(:,iuni);
+    end
+    if isfield(targobj,'n')
+        targinfo.n = targobj.n(:,iuni);
+    end
     targinfo.r = targobj.r(:,iuni);
-    targinfo.d = targobj.d(:,iuni);
-    targinfo.d2 = targobj.d2(:,iuni);
-    targinfo.n = targobj.n(:,iuni);
 else
     targinfo.r = targobj(:,iuni);
 end
diff --git a/chunkie/chunkerinterior.m b/chunkie/chunkerinterior.m
index 49ece7e..cde9605 100644
--- a/chunkie/chunkerinterior.m
+++ b/chunkie/chunkerinterior.m
@@ -47,7 +47,7 @@
 elseif class(chnkobj) == "chunkgraph"
    chnkr = merge(chnkobj.echnks);
 else
-    msg = "Unsupported object in chunkerinteriort";
+    msg = "Unsupported object in chunkerinterior";
     error(msg)
 end
 
diff --git a/chunkie/chunkerkerneval.m b/chunkie/chunkerkerneval.m
index 573bf92..8530f53 100644
--- a/chunkie/chunkerkerneval.m
+++ b/chunkie/chunkerkerneval.m
@@ -63,13 +63,10 @@
 elseif class(chnkobj) == "chunkgraph"
    chnkr = merge(chnkobj.echnks);
 else
-    msg = "Unsupported object in chunkerinteriort";
+    msg = "Unsupported object in chunkerkerneval";
     error(msg)
 end
 
-
-
-
 srcinfo = []; targinfo = [];
 srcinfo.r = chnkr.r(:,1); srcinfo.d = chnkr.d(:,1); 
 srcinfo.n = chnkr.n(:,1); srcinfo.d2 = chnkr.d2(:,1);
diff --git a/devtools/test/chunkerkerneval_greenlapTest.m b/devtools/test/chunkerkerneval_greenlapTest.m
index 9cccf63..ecf5c92 100644
--- a/devtools/test/chunkerkerneval_greenlapTest.m
+++ b/devtools/test/chunkerkerneval_greenlapTest.m
@@ -23,7 +23,7 @@
 
 % sources
 
-ns = 10;
+ns = 100;
 ts = 0.0+2*pi*rand(ns,1);
 sources = starfish(ts,narms,amp);
 sources = 3.0*sources;
@@ -31,7 +31,7 @@
 
 % targets
 
-nt = 100;
+nt = 300;
 ts = 0.0+2*pi*rand(nt,1);
 targets = starfish(ts,narms,amp);
 targets = targets.*repmat(rand(1,nt),2,1);
@@ -52,9 +52,9 @@
 
 % kernel defs
 
-kernd = @(s,t) chnk.lap2d.kern(s,t,'d');
-kerns = @(s,t) chnk.lap2d.kern(s,t,'s');
-kernsprime = @(s,t) chnk.lap2d.kern(s,t,'sprime');
+kernd = kernel('lap','d');
+kerns = kernel('lap','s');
+kernsprime = kernel('lap','sprime');
 
 opdims = [1 1];
 
@@ -63,21 +63,22 @@
 srcinfo = []; srcinfo.r = sources; 
 targinfo = []; targinfo.r = chnkr.r(:,:); 
 targinfo.d = chnkr.d(:,:);
-kernmats = kerns(srcinfo,targinfo);
-kernmatsprime = kernsprime(srcinfo,targinfo);
+kernmats = kerns.eval(srcinfo,targinfo);
+kernmatsprime = kernsprime.eval(srcinfo,targinfo);
 densu = kernmats*strengths;
 densun = kernmatsprime*strengths;
 
 % eval u at targets
 
 targinfo = []; targinfo.r = targets;
-kernmatstarg = kerns(srcinfo,targinfo);
+kernmatstarg = kerns.eval(srcinfo,targinfo);
 utarg = kernmatstarg*strengths;
 
 
-% test green's id
+% test green's id. we use FLAM, direct and FMM for smooth work
 
-opts.quadkgparams = {'RelTol',1.0e-13,'AbsTol',1.0e-13};
+opts = [];
+opts.flam = true;
 start=tic; Du = chunkerkerneval(chnkr,kernd,densu,targets,opts); 
 toc(start)
 start=tic; Sun = chunkerkerneval(chnkr,kerns,densun,targets,opts); 
@@ -89,7 +90,41 @@
 
 relerr = norm(utarg-utarg2,'fro')/norm(utarg,'fro');
 
-fprintf('relative frobenius error %5.2e\n',relerr);
+fprintf('relative frobenius error, forcing flam %5.2e\n',relerr);
+
+assert(relerr < 1e-11);
+
+opts = [];
+opts.accel = false;
+start=tic; Du = chunkerkerneval(chnkr,kernd,densu,targets,opts); 
+toc(start)
+start=tic; Sun = chunkerkerneval(chnkr,kerns,densun,targets,opts); 
+toc(start)
+
+utarg2 = Sun-Du;
+
+%
+
+relerr = norm(utarg-utarg2,'fro')/norm(utarg,'fro');
+
+fprintf('relative frobenius error, forcing direct %5.2e\n',relerr);
+
+assert(relerr < 1e-11);
+
+opts = [];
+opts.forcefmm = true;
+start=tic; Du = chunkerkerneval(chnkr,kernd,densu,targets,opts); 
+toc(start)
+start=tic; Sun = chunkerkerneval(chnkr,kerns,densun,targets,opts); 
+toc(start)
+
+utarg2 = Sun-Du;
+
+%
+
+relerr = norm(utarg-utarg2,'fro')/norm(utarg,'fro');
+
+fprintf('relative frobenius error, forcing fmm %5.2e\n',relerr);
 
 assert(relerr < 1e-11);