there is a reason why possible hets arent really priced higher than BPs that arent possible hets. the odds are too long, 100% hets are cheap enough, and its a gamble.

then, in the case of piebald, people with access to the whole clutch can often use markers to pick out the most promising possible hets. if the hatchlings that really look like they should be het pied have been held back, you are left with 50% possible het albino for each.