A friend gave me one of these little guys once for fun. I put it with a standard size oriental hen. About half of the offsprings turn out small like the the dad, and the other half got to normal size. My friend has been breeding his bantam orientals that way ever since as he said it's harder to keep the size down when both breeders are "miniatures" that have been bred down from large fowls. He didn't like the ko shamo or cornish look, so he was aiming for a almost exact replica of the large fowls. Best way to do that is to use a pure oriental hen, and maybe a already bantamize oriental rooster, the offsprings will show less of that "toy" look and more of a "game" look while a good number of the batch will remain small. Just thought I share to anyone who might still be experimenting creating their own bantam orientals. Might be worth a try, but don't take my words for it.