Friends, I just inherited a Custom Vibrolux Reverb from a friend who passed away last week. I don't know how it sounds yet (getting shipped), but I'm intrigued by changes that the "conversion" to VibroVerb RI might add (deeper, wetter reverb, major Hiss reduction, NFB, adjustable fixed bias). It doesn't look too hard (same PCB, I've read). I'm looking for clean Bakersfield -> Surf's Up sound. I've currently got a '73 DR, but might give it up for the one I inherited if I can get what I want out of it. Any experiences with doing this conversion? Worth the effort? I'm not selling the inherited amp, but am willing to dig in and tailor it a bit.