Just keep all the frizzled ones and you should, hopefully, have all girls. Thats what I do. I do have 1 that is a soft sizzle but she isn't in the breeding stock. She's in the house. The others will let her free range with them but WILL NOT allow her in the pen. She has a deformed face. One side is caved in and she's blind in that side. She was always the smallest one from the very start. While her hatch mates where outside roaming around she was inside keeping any lone chicks company. It took forever for her to grow her feathers. Her sisters where laying eggs while she was still getting feathers. So she's been pampered all her live by me. But she's grown up to be nice and fluffy. She don't have but a small crest but she looks twice her actualy body size she's so fluffy. I'm going to let her out to free range today. I'll let the partridge silkies out too today as long as the ladies have paid their rent today. lol