How accurate is it to go by the fact that females feather out faster than males? I have some approx. 1 week old babies. 5 of them are La Fleche...supposed to be one boy 4 girls. I picked the one I thought was male, based on personality, immediately and painted a green dot on his head. Now, he is the one with the shortest wing feathers...in fact the others are twice as long as his. So I am assuming I got it right? Also, with the others, I am pretty sure I have all females with the pullets, only one male in the bantams (which they won't sex so they are straight run) and I really think there may be one girl in the packing peanuts. Has anyone else had success with this method?