Bob,
All kidding aside, if you "axe" me, if things are a bit tight with the 200 feet of new gutters, you'd find a significant upgrade in sound quality by going to the M80 v3s from your M60s. In the double-blind tests I've done between those two loudspeakers, I consistently rank the M80 a full point above the very good M60s -- if the M60 gets an 8 out of 10 on my score sheet (10 being the theoretical perfect loudspeaker), the M80v3 gets a 9 from me. According to my ultra-critical speaker rating criteria, that degree of improvement is a lot.
Cheers,
Alan
