I know for a fact I'm not getting contact with the new drop away, so I guess the logical conclusion is that there was some contact or other "tip up" factor inherent to the WB setup. Probably also why it shot different arrows of the same spine so differently with the WB. So, as others have offered, the tune with the WB maybe wasn't really as good as it appeared. The new one shootsjust about all arrows in the locker very close to the same spot. Sometimes it would be nice to have access to one of those high speed video cameras.

Thanks to all for your thoughts and insights.