I appreciated the low end on my 72, but when I had it I also had a 69. The necks were virtually the same, although the 72 had the bullet and 3 bolt microtilt thing. But although the body should have been pretty much the same, the 72 was much heavier and had that horrendous thick plastic-y finish. It just never felt as good at all. And the Fender humbucker really did something to the sound of the strings, very heavy but nasal at the same time. While most feel the DiMarzio model One is an anemic replacement for a Gibson mudbucker, I would venture to guess that it is a sonic improvement on the Fender. I would guess a Stingray pup would maybe sound ok in one, with active electronics and all, as the early MM basses were kind of heavy like a 70s Tele. I don't know if a Bartolini could deliver the pow of a Stingray pup, as they aren't the same. I can't say I couldn't live without their P pups or the classic Hi-A.