Originally Posted by resurgence
Gilliam Roundhead should be breed to a hatch or leiper with good results. Mostly roundheads are fought as a cock because they are in "light boned fowls" category. Fighting them pure may show good results because they are good cutters, but they need "bottom", as most of the roundhead breeds for the finishing touches. Some breeders are using gilmore, leiper, penny, melsimms, or mclean hatches to cross with the roundheads with maximum results.
With his hatches, the heavy composition which was mention by Laguan,
I don't think it will run.