Guys, both EBMM and SBMM basses are not known for their light weight. Before you jump on me, I will say I've seen a few lighter EBMM basses. but I'd say 10~11 lbs is pretty average for both lines.
As to playability, the dimensions (neck width, string spacing) are the same. Both 5-string lines have 17.5mm string spacing, which is tighter than a lot of other basses, including Fender and Lakland.
I have owned both EBMM and SBMM basses, I've got them listed in my profile. I like both and feel my Ray35 is a very high quality bass.
Finally, when comparing price, think new vs new, or used vs used. Either way, the SBMMs are about 1/2 the prices of the EBMMs.
Best of luck with your decision.
Bob