So, I changed the stock pick-ups on my MIM JB and have some Bartolinis J S instead. I'm very pleased with them. More warmth, more depth, I can get a really smooth or growling or deep tone with them. They even more bright than the stock ones but without any harshness. They are not the "best" J barts available, their output level is a little low (but better than the stock pups) but they offer a nice pallet of tones. I may later had a nice preamp, though I wanted to go passive, to get even more versatility. Just wanna share.