I've got my MIM Jazz for 2 months now, and it has been set up once 3 weeks after I bought it (it was buzzing like hell). I made the pups changed at the same time. Then, somewhat 2 or 3 weeks after, last thursday, I changed the strings (to DR-Hi Beams ... love 'em !) and I had a rehearsal. I didn't played it since yesterday and it starts buzzing again. I'm quite surprised. Is it common that this kind of bass needs to be set up often ? My previous basses (Hohner, Ibanez, BassCOllection) were set up two or three times a year.