I have an over whelming urge to change something and I have a chance to make an upgrade to my system,but I'm not 100% sure which to do. Since I've never heard the VP150 or the M80s, I'd like to know which would make the biggest impact on my system. I have the M22s as fronts, the VP100 as CC, the QS8s for surrounds, with an HSU VTF3 handling the bass. Do I upgrade the VP100 to the VP150 or do I upgrade the M22s to the M80s? What do you guys think?