Anyone know of a better snowflap? I cut the bottom off mine cause it was chewed up, but then started reading about potential cooling issues. Looking at the side profile of the original uncut yami flap, the bottom section of the flap actually tips back away from the sled. I have a hard time believing that this little flap extension defects any snow back into the tunnel, the angles just don't work out that way. If you look at cat or doo flaps, the bottom edge curves back toward the track, much more likely to deflect additional snow back into the tunnel. Anyone ever try to fit one of these flaps on a nytro? Also, was checking out the skinz flex flap, besides the crazy high price, they don't show pics of the side profile. I've only seen one review, on this site, and it wasn't positive.