In vanilla forestry, there are a lot of bee traits that you simply can't get without cheating in a bee, pollination fastest, for example. It would be nice if there was a branch specifically for these traits, an extreme branch, if you will. They shouldn't be easy to get, and they will require quite the breeding jog to get the trait you want. So, for each trait, there should be one bee that is amazing in this trait, and terrible in everything else.

However, it also comes to my attention that one end of a trait (again, let's use pollination) might be useful in certain situations. Pollination fastest is great for tree breeding, but you might want pollination slowest if you don't like what it does to the surrounding trees. Flower spreading fastest sounds like quite a mess in practice, but can be quite beneficial for building a flower farm. Flower spreading slowest causes the bees to clutter up your apiculture area less. So, for any trait that isn't available, it would be nice to have a bee that would get that trait upon breeding.