Thanks Grunt. Good catch.
I actually have good news. When I brought the idea of inwall up to the wife she got really upset. Doesn't want to spend any more money on the HT room. To make a long story short, we will keep the rockets and hope for the best. I may build a bracket to attach the top of them to the wall in order to alleviate tipping concerns. Other than that I guess I will just have to stay on top of him so that he doesn't try messing with the plugs in the back.