I honestly feel you can't be too male heavy. Just because you plan on paring certain males doesn't mean they will get the job done. Basically, I like having extra males as back-ups. For instance, we screwed our selves this year because we sold our het pied male before we knew if our pied male would be a good breeder. Ended up he wasn't, he didn't lock with either of our het/poss het females this season...so no pieds this year .

Just my

Your collection is a great start! You'll have many choices as far as combos too.