This debate came up in our F&D session tonight. If a FU activates a power, say Enhance - Brawn with a Darkside Pip, then commits Force to maintain the power, would the character be sustaining the power with the darkside of the force, so therefore take conflict each round?
The other debate was with the Bind Power. Activating Bind with 2 light and 1 dark, then sustaining the power, are they sustaining the roll so therefore 2 white and 1 dark meaning 3 damage / round and 1 conflict per round?