Index: BooleanQuery.java
===================================================================
--- BooleanQuery.java	(revision 154651)
+++ BooleanQuery.java	(working copy)
@@ -200,6 +200,10 @@
         else if (c.isRequired())
           return null;
       }
+      
+      if (allowSkipTo14) {
+        result.allowSkipTo();
+      }
 
       return result;
     }
@@ -270,19 +274,31 @@
 
       return result;
     }
+    
+    public Explanation explain(IndexReader reader, int doc) throws IOException {
+      return scorer(reader).explain(doc);
+    }
   }
 
   /** Indicates whether to use good old 1.4 BooleanScorer. */
   private static boolean useScorer14 = false;
+  /** Indicates whether the 1.4 BooleanScorer should allow skipTo() */
+  private static boolean allowSkipTo14 = false;
   
-  public static void setUseScorer14(boolean use14) {
+  public static void setUseScorer14(boolean use14, boolean allowSkipTo) {
     useScorer14 = use14;
+    allowSkipTo14 = allowSkipTo;
   }
   
   public static boolean getUseScorer14() {
     return useScorer14;
   }
   
+  public static boolean getAllowSkipTo14() {
+    return allowSkipTo14;
+  }
+  
+  
   protected Weight createWeight(Searcher searcher) {
     return getUseScorer14() ? (Weight) new BooleanWeight(searcher)
                             : (Weight) new BooleanWeight2(searcher);