Keeping HP even while charming.

[pijan]

I've been doing a lot of solo charming on my baby chanter and I'm having a hard time keeping my pet and the enemy as similar HP pools. Is there a trick for this? One of the biggest slowdowns I have is using a ton of mana nuking when one mob is still at 40% post fight. Once I get clarity it might not be as bad but right now it's causing a lot of down time.

How do you handle a pet that dies too fast? How do handle one that's too strong?