I've got original Ti vintage M60 fronts, V3 (I think) VP180, four V3 M3s for surrounds, and four V4 M3s for overheads. I can't tell any difference at all. My room, even with all of the treatments, would color the different speakers more than the differences in V numbers. Room correction in your receiver should match them to sound extremely similar.

Farewell - June 4, 2020