After reading through this thread a couple of times, I believe that CountZero and Lone WolfMarketing are not measuring the same places on the two frames in question.
If I understood CountZero correctly, I believe that he indicated that he got a measurement of about 2.78" from the face of the trigger to the rear face of the backstrap on a 3rd gen g34. When LoneWolfMarketing described how he measured the Timberwolf, it sounds to me as if he went from the trigger face to the trigger housing pin, not to the rear face of the backstrapand got 2.52"(with the trigger forward).
Am I mistaken?
Is it possible to get a measurement from the trigger face to the rear face of the backstrap on the Timberwolf?