Thanks, for the informed response, i geuss there's easy genes to work out and then theres the much deeper stuff ie if you wanted a rough dog put a rough coated dog over your bitch, you would get some rough some smooth
then theres the deeper stuff like speed, strike ect
mostly it seems to chance but theres ways of getting the odds in your favoure
my mate who keeps roller pigeons says he can breed a bird for a color, then breed the birds for the roll by careful selection and time
If only dogs was that easy to work out, i hope my next litter turn out well both dogs are out of good lines b