Has any tried the snow flap from the Catalyst ZR or Riot on an M? Looks like the Riot/ZR flap bolts onto the stock bumper of the M, but curious if the shorter tunnel on the M would allow the track catch the snow flap? Going down trails with the scratchers down seems to work as Vern states above, however following a single track up through the trees is where the temp light comes on for me, even if the snow is soft. This is the situation where I think flap could really help. Hate to leave the scratchers down when picking your way through the trees and I don't know if the scratchers give much benefit when moving slow and in soft snow???