stop feeding them scratch..... I only feed mine scratch when I want them to do something. I think it messes them up to alter their diet with with CANDY.
I had birds from Kathy and they were great layers.
I also have had Hatcher BR RIR EE AND Leghorn had issues except with one that laid very oddly snapped eggs and soft eggs with blood spots. I culled her. I have not really had many problems in that department......
I also don't buy hatchery birds anymore.
TNBEARCHICK I have a breeder age roo from my GSBR ROO. he might be just what you are looking for. my birds are good layers and huge birds for meat. I have 6 GIRLS and they are coming out of molt and I get usually 3-5 eggs a day. they are still getting back in the swing of things though.