I've been considering a belt primary drive for my G15-CS; I have a Newby belt primary on my Enfield and love every part of it...great feel, handles all the power upgrades the stock clutch won't, no leaks, simple, quiet, reliable. But the Enfield has a cush drive rear hub. The Atlas clutch on the G15 has the cush center, but none of the belt systems I've come across seem to retain that feature. I'm concerned about having a setup without it. Is there any belt drive that uses a cush clutch hub? (And is hopefully narrow enough to use with the G15-CS narrow alloy chaincase without too much trouble...?) Thanks!