Well stated.
I have three cockerel.
#1 has no visible crest but a perfectly straight comb.
#2 has a medium crest and fairly straight comb
#3 has a huge crest and severely twisted comb.
To date the only one that I have breed is #1. I was concerened about the pairing of #1 with my "A" hen (she is the smaller one with smaller eggs) becuase she had a very small crest and I feared the this pairing may produce pullets will negligabel cresting. I got two pullets from the A1 paring in my test hatch, and at 3 weeks the A1 pullets were both already showing good cresting.
This is a very small test population, but prooves that
you don't need large crests on your roosters to get hens that have good cresting. I am confidant from all the photos from the breeders in the UK that this can be accomplished with out keep a staight combed line for exibition rooster and a separate crested line for exibition hen. They are not double mating in the UK so we shouldn't in the USA either.
Yes...The hens seek to be mated by the rooster with the largest redest combs. A large red comb is an idication of a healthy rooster and so to ensure that thier chick are the strongest healthiest the hens look for the boys with the big combs.