There is a flip side from a listeners point of view, whenever I've seen RHCP Flea uses some crazy sounds and I'm sure it sounds ace in his in ears or fake GK bass cabs on stage, lol, but more often than not the heavily fx laden sounds don't cut through, at Knebworth I'd rather someone had given him a humbucker equipped bass and just mixed a good core tone audible around the whole park and left it at that! He's now gone back to basses with MM pickups full time, the jazzes have gone and the new ones have musicman pickups in the musicman position, other than that he still uses the Modulus basses.