diff --git a/tests/features/allele.feature b/tests/features/allele.feature
index d6f5df5..4aac0bd 100644
--- a/tests/features/allele.feature
+++ b/tests/features/allele.feature
@@ -1,19 +1,5 @@
 Feature: Alleles
 
-  Scenario Outline: allele reduction with ping
-
-    Given the allele as <Allele>
-    When reducing on the <Level> level with ping
-    Then the reduced allele is found to be <Redux Allele>
-
-    Examples:
-      | Allele  | Level | Redux Allele |
-      | C*02:02 | lg    | C*02:02g     |
-      | C*02:02 | lgx   | C*02:02      |
-      | C*02:10 | lg    | C*02:02g     |
-      | C*02:10 | lgx   | C*02:02      |
-      | C*06:17 | lgx   | C*06:02      |
-
   Scenario Outline: allele reduction
 
     Given the allele as <Allele>
diff --git a/tests/features/p_g_group.feature b/tests/features/p_g_group.feature
index 0a063fc..87b1521 100644
--- a/tests/features/p_g_group.feature
+++ b/tests/features/p_g_group.feature
@@ -10,3 +10,79 @@ Feature: P and G Groups
       | Allele      | Level | Redux Allele |
       | A*02:01P    | lgx   | A*02:01      |
       | A*02:01:01G | lgx   | A*02:01      |
+
+
+  Scenario Outline: allele reduction with ping
+
+    Given the allele as <Allele>
+    When reducing on the <Level> level with ping
+    Then the reduced allele is found to be <Redux Allele>
+
+    Examples:
+      | Allele           | Level | Redux Allele |
+      | C*02:02          | lg    | C*02:02g     |
+      | C*02:02          | lgx   | C*02:02      |
+      | C*02:10          | lg    | C*02:02g     |
+      | C*02:10          | lgx   | C*02:02      |
+      | C*06:17          | lgx   | C*06:02      |
+
+    Examples: DRB4*01s
+      | Allele           | Level | Redux Allele |
+      | DRB4*01:03       | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:02    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:03    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:04    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:05    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:06    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:07    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:08    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:09    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:10    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:11    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:12    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:13    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:14    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:15    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:16    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:17    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:18    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:19    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:20    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:21    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:22    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:23    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:24    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:25    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:26    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:27    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:28    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:29    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:30    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:31    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:32    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:33    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:34    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:35    | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:01 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:03 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:04 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:05 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:06 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:07 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:08 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:09 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:10 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:11 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:12 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:14 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:15 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:16 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:17 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:01:18 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:02:01 | lgx   | DRB4*01:01   |
+      | DRB4*01:03:02:02 | lgx   | DRB4*01:01   |
+
+    Examples: C*02:10s
+      | Allele           | Level | Redux Allele |
+      | C*02:10:02       | lgx   | C*02:02      |