I have always loved v30s, but wanted a combo. Now I have the best of both worlds. I would def recommend them....much more articulate and lively sounding than the stock speakers. 75 are just to scooped and harsh sounding to me, but everyone's set up is different.
Since I made the switch to Charvels with the JB/59 combo, the stock speakers we almost to muddy sounding. I get a great Van Halen like tone now....like I say I was gonna sell the amp but now I am soooooo glad I didn't