I've voted so I'll comment although I don't actually possess an NSR at all.

I voted SBS but I'd like to put a proviso in of they would have to be staggered, I'd be loathed to buy a set that weren't and would probably go for GP style if I got a MC18 and the only option were GP or SBS level.
_________________
Please do not PM me technical questions, if you can't find it on the Forum start a thread