I have read from good sources that a frostbitten comb can result in sterility in a rooster. SC roos are esp. susceptible. I am worried about losing my roos fertility to frostbite. I know all about the "vaseline/bag balm on the comb" thing, but even that seems a pretty slim defense against a MA late December--February. I am worried about this, and I don't know if i'll be able to apply it as often as they need. Yet so many raise SC roos up north, maybe it isn't that bad???????????? I just DON"T want sterile roos!!