My plan was to get M10 (been through M9, M9P, M240) but yesterday I decided to get SL instead. After using my X-Pro2 with native X lenses and M lenses via adapter mirror less is what I want. I just could not live with that ‘traditional’ inaccurate rangefinder, removable bottom plate and frame selector. Size of M10 would be fine, but not enough to get one.