Sorry to DP everyone.
I totally agree though. I'm only 5'8/~150lbs, so the weight of my stingray definitely catches up to me if I play it long enough..
A lot of times in the past I've heard of crazy varying weights between two MM basses though, and even with a few other big companies it's the same story. One guy is talking about how his "_____ bass(Stingray?, Bongo?, Precision?, jazz?) weighs 11-12lbs.". Then there is always some other guy "Oh yeah?? well, my _____ bass only weighs 7.5-8lbs!"
I guess that might have been a little more than what was called for..

D) But I guess what I'm trying to say is that, as long as you keep searching, you are bound to find that one light diamond MM in the heavy "rough" that is just the right weight for you.