Can't help you w/ the VP150 thing, but how do you guys like the FMB for your QS8s? Specifically, how much movement does it allow? Are they eventually going to loosen up and leave your QS8s pointing straight down?

Ideally, I'd like my QS8s to be pointing 20-30 degrees downward and inward as much as possible (I have them mounted flush on the back wall, 8' up currently - far from ideal).

Hope this doesn't qualify as a hi-jack.