bigJ,
Based on your experience, if one were to open up a M7 blank, as delivered, to use the OEM-style bottom metal, where would the trigger sit in the triggerguard?
Not sure if I understand the question. If you use oem 600/660 bottom metal, the trigger will sit where it should. The problem is if you don’t move both the action and bottom metal backwards in the stock the trigger is quite far away from the pistol grip.