hi. I'm looking to mount one of my Paradigm Atoms (surround) to the wall. So that it can mount on the back wall and aim toward the listener, I'll be mounting them at 90 degrees (also won't block the rear port). I know the Premier m-60's are the "official" mounting bracket for the Paradigms. However they don't allow a 90 degree angle, so I can't use them without modifying. Omnimounts however allow the perfect angle and their website recommends the 10.0 for the Atoms, so I picked one up at Radio Shack. The mounting plate matches up perfect to the holes. I notice the holes are not threaded, so "presumably" the screws will "bite" the plastic a bit to make their thread. The omnimount screws are slightly larger than the holes, so they will in fact bite into the plastic. My question - is this normal? Will the screws for the Premier brackets dig into the plastic? While I don't have to drill holes, it just seems like to use screws will slightly change the speakers from like new condition. Just a little scared to mar the speakers. Thanks.