Charming in Permafrost

[Daldaen]

Gotten tired of Raptors and PuGs generally don't pick up druids, so I figured I'd ask here.

How reliable is charming in permafrost in the tunnels / how do you get there if IGs are up (from my recollection they see invis and you can't sneak past them).

One thing I've heard is that the pathing down there is terribad and yields warping mobs / mobs in walls and such... is this true?

I'd try it out on my own but I'd hate to have to end up begging a cleric to come all the way to perma to toss me a rez or 4.