The disciplines are still in beta right now, we're doing beta testing for it in my game. Once the disciplines are completed and the base classes are written, then there will be more capability to balance them. I'm shooting for tier 3 over all.
Btw, to any who are interested, my forum site is back up (LoB's home site, Sorcerer Studios). If you're interested in an account, sign up there and PM here, fastest way for me to get you verified.
-X