The exp your pets get isnt static, it depends on the damage you do so why do you type the exp your pets get.

Well I thought Charlotte can't burst too, but now I can't say that.
You can kinda burst charlotte but, you can't expect the exp a buffer/debuffer pet gets.
You need weight for her(she MUST attack).
And you must always have fresh pets to burst her, and you need to change your bursting places quite often. For example in the picture someone posted in this site, a level 1-2-3(im almost sure) charlotte, got 2XXX exp at beetles from bursting. Beetles are 21ish(arent they) and now to get her the same/better exp, you need to go to cirruses, sheeps, or raptors. the level gap between Charlotte's lvl and the mobs you burst at has to be "at least" 20. so when she gets to 40+, 50+, bursting becomes almost an inconvenient way to level her.
Becoz charlotte kind of has a buff skill, which only let her use it to herself only. so the character who has to be level to get her good exp should be herself XD