Tamid, I find this ongoing quest rather puzzling. Have you actually already exhausted the suggestions offered in the other thread? Have you established a stable and consistent mount? Made all the measurements on the guns? Discovered the ones that give the best results? Altered the gun(s) that were not acceptable? Shot the pattern board for POI? Shot targets to verify?
Some substantial efforts needs to be expended before it's time to worry about a slack jaw.
JMO of course but you can talk about minutia forever and if you don't actually act on anything the questions will remain unresolved.
