Soloing v2 Instructors with different classes?

I push mihile out of the way with gust charm and separate him away again as needed because he'll eventually walk over to him because no puppet or anything, if I make a mistake I have well over the amount of HP required to take a hit from mihile, as for potions I usually save the potion cooldown for all cures only, and use vampire to heal (and regular potions if I ever run out of MP/get caught in tornado/get messed up by potential lock, etc)

I also always put all of my DoTs on the mobbed instructors in case I get webbed or stunned or anything I can't get out of so damage will continuously be done