Okay, I have those three breeds as bantam but they really are big for bantam. I would like to know how I can downsize them through breeding with true bantam breeds, Ex. I have Standard bantam Sumatra roo with old english game bantam hen. They breed and have offspring. The babies will have longer tails than mom and shorter than dad. From there, I Want to keep getting longer tails but also shorter size. Same for Silkies and polish, how do I go from the first hatch?