Hi Oen ,I've the same problem with Mealy pieds.A few years ago I bought some cracking Van Reets,one pair in particular bred mealies,mealy pieds ,blue pieds and blues,every mealy pied i've lost off the loft,mealies,blue pieds score just for the hell of it and the blues come home ????????? Lindsay.
PS.This is the first season i've had any reds and red pieds,so far so good.