My Ams are great in the warmer months. I get tons of blue eggs! If you are just after eggs your best bet is to go with a Leghorn or similar. Depends on your needs for eggs.
Crossing these birds with the sussex is part of what ruined them imo. Malay and Asil are options because of their history. Having seen these in person I might say that it would improve their overall type. I have here an Orloff hen who is a little older but she has a nice wide chest and is fairly upright. I have this new cock here and hope that I can raise some of their offspring. They each have small faults that it would be miraculous if they canceled out in each other (ha- right!) but they are the two best I have for size. Others here have better spangling but you have to start somewhere. MFB showed pics a while back of the birds he's bred up for better color. He didn't cross anything in. I think he's got the right idea. No quick fixes despite really really wanting them![]()
I agree, if you have the genetics to create what you want without using another breed you are far better off using what you have. It may take longer but you will know there is no possibility of throwbacks.