Another thing to consider: quite commonly, a rooster won't breed when his comb is frostbitten, so you'll have egg fertility issues. I had a roo last year that got the tips of his comb frostbitten, and it took MONTHS for the tips to finally fall off. I had to separate him, too, because the girls were pecking at the tips. It's not worth it, to me, to have to separate my roo for months, so I now slather them up!