its nature you never get the same 2 of anything, only similarities.

your best bet is to experiment with everything. polinate all the females with all the males. to get the genetics you are looking for it can take few-20 years to get what you really want through crossbreeding and backcrossing. but you can get lucky and find keepers faster.

its hard to tell exactly what the male gives to the gene pool cause we cant/dont sample the males, its more or less guess work