If dragons of two different breeds mate could we have a BSA to influence which parent's breed the egg is more likely to be? I don't think it ought to be a 100% guarantee of being the same breed as the parent in question, but just something to increase the likelihood of getting the breed you want. I imagine it could work similarly to Fertility where you could pick the dragon you want, and when the dragon mates the egg (if one is produced) would be more likely to be the same breed as that parent.