RE: BME 116 /stock muffs, spin a Mej 26x12 3 blade?
I run a DA-100 with a 25x12x3 with no problems on cans. You can tell a difference in performacne from a 27x10 or 28x10 but you get used it pretty quickly.
Knowing the BME has a fair amount more power I would think a 26x12x3 would be perfect.