Dr. Schnerd -- Don't want to prematurely rain on your parade, but there was at least one thread some time back with people expressing disappointment with the overhead guard from PS. I recall this because I had really wanted to buy one. I'd appreciate your posting here about your experience w/ it.
I bought a PS DC and it sucks. I also use the trash can w/ cyclone lid (see comments above in this thread, if interested). I have had switch problems. The first switch stopped working -- it would flip back and forth but not "engage" - regardless of the insertion of the kid-safety part. They replaced it, no problem. While that one works, the snap-in fitting was broken when it arrived - on my to-do list to get a third switch.
Now that I read your post again, not sure if the overhead guard is all you bought from PS or if you got everything there. -- Igor