It's a little early yet. you have to vent sex them and that becomes easier the closer you wait to 8 weeks. Their vents will change a lot from now until then so it would be really easy to make a mistake.
Yep... gotta wait till the crow or lay an egg... im killing all mine and eating em... drives me nuts cuz i aint got time to wait like that before separating em out... they tend to end up fighting more and always drawing blood when they get older..... so im getting rid of all my A&Ms.... too much fighting bloodshed and cant sex em quick enough... body size aint worth it either as my browns are the same sizes...