I've been considering dumping my lessons into beastmastery, because it looks like a good way to get some extra support for killing things. The thing is, if I'm getting less experience for using one, then I don't think I'd be interested.

Is the experience shared with beasts?

Thanks in advance!

It's shared such that when you gain experience, so does your beast. But it has no effect on the experience you get, no.

Oh! I guess I ended up being less clear than I intended, but I still got the right answer, which was about the amount of experience. That's a pretty nice deal from a beast then!

Thanks again!

It also takes a really tiny amount of xp to level up a beast to max, so it's not like you'd be missing out on anything even if they did siphon a little off (which they don't). You generally have the beast at max level after an hour or two of good bashing.