One, do each of the three routes change stats at all? (I suppose I would wonder if there's a pure muscle growth route planned, so BE, Fat, Muscle, Futa... Or even an Ass route too. So five possible routes) and second question is does anyone know a good place to grind for levels? I'm about 40ish and I have the verdant greatsword on the fox. Oh, I do have a suggestion, where mastering something in the bestiary makes it drop rare stuff better or lets you just instantly defeat it, that'd be nice to slow down the grind. Cause I'm getting rather bored of mindlessly clicking to build up stuff so I can see more growth.

The growth routes don't effect stats. Just how each furry looks like at higher levels (up to 50) and what extra skill they get. From what I've heard that skill will change if you reset the furries down a different growth route. As for faster leveling, there really isn't one. It just depends on location and using items that give extra exp. It can also help to use the codes at the bank.