I am really scared to get Falskaar. i seen, through my modding process under Gopher's mods, a few mods using Falksaar, having optional patches and such. I wanna know the onws that use Falskaar and have these option, so i can go back through without screwing everything up and ruining my game. if someone can help me through this, then i would really appreciate it.

Falskaar is 99% self contained, though Alexander can elaborate more on that himself.

IIRC the only area where compatibility is a concern is I think Dawnstar, where the boat to Falskaar lies. If a mod edits that area, a patch has to be made.