I have researched a great deal about suppressing the G26, but there isn't much out there (the thread you provided, for example, only contained two minor anecdotes about suppressing a G26). I am generally gathering that while this model is more sensitive to the increased muzzle weight, using more powerful loads will make for a reliable setup. But, I was just looking for more experience since there isn't a lot of posted info out there about the details of suppressing the G26.
Originally Posted by r2kba
The regular 'defensive' loads you describe with 147grain pills are all subsonic by default.
Being subsonic has nothing to do with its relative power. Most suppressor-specific 147gr loads come out of full-sized guns at <900fps. A 147gr @ 1000fps from a 3.5" barrel would provide a ~50% greater recoil impulse, which should make a big impact for reliable functioning.