its a common problem in most wyandottes. i always sent the straight combs to pet or layer pens. you can still breed them if they are needed, as long as your rooster is rose comb.On a side note, my BLRW chicks from foley lines are looking like 7 pullets and 1 cockerel. Mildly disappointed as 2of those pullets have single combs. Guess I'll just put them in the layer pen.