Duct tape is pretty much universal around here.

Actually, the screw holes are behind the QS8!

If you have lots of mud could you not decide where to put your speakers cut the drywall, put in proper bracing behind, reinstall the drywall, mud, and then repaint? I would as the QS8's are heavy and I wouldn't want one to come crashing down. Especially with my kids banging into the walls occasionally.

You *could*, but using good wall anchors such as toggle bolts should be adequate. The Qs are close enough to the wall and the T bracket has 6 screw holes that you could completely use if wanted.

I believe I used 4 drywall anchors for each surround and I've had no problems with any of my 4 QS8s. If you can get one of the screw holes in the T bracket on a stud, then of course that is better, but I wouldn't think you need to tear your walls up just for bracing.

Exactly. Just use good anchors and lots of them. At the old house I had one of the QS8s mounted on cheap old wood panelling maybe 1/8 thick or less. Pretty flimsy stuff.

With 3 screws it was iffy, but with 5 screws it was there to stay.

The bracket is STILL there, come to think about it