Channeled skills (skills that continually activate) don't seem to be playing nicely with some of the major passive nodes. I'm not sure if this game has it's own term for them, maybe archetype nodes?
For example, bladestorm, when used with the unfettered determination modifier, only gives me unleashed fury points (from the flurrying flames node) once upon activation of the skill. It does not give me more unleashed fury points as i keep hitting enemies. Another example is that slayer's flurry will constantly drain overload points (from the static transferral node) while channeling the attack's flurry.
An example of a good channeled skill interaction with an archetype node that i have noticed is that bladestorm, with the unfettered determination modifier, will drain overload points once upon activation, and (hopefully) keeps the effects of the overload points spent while i channel the skill.