I'm going to be a pariah here and suggest you think about something in a 35" scale if you're detuning.
Also, if you're used to the string-spacing of your Sadowsky, then even just the spacing on an MM might throw you off. Or not, but I ended up selling off my basses with tighter string spacing due to comfort issues.
IMHO, YMMV etc.
I wont be de-tunning. Standard BEADG will be fine for me. The guitars will be de-tuned to drop C. I didn't want to de-tune my 4 stringers... thats what I meant.
I hear you on the MM Spacing. I've played a few and don't like the spacing at all... I guess I could get used to it, but you make a good point.
I think its really down to a Modern or MV5.