I tried it out and at least with my current mage it doesn't really help me. I do get mana fast and never have to wait that. Problem is that sometimes I rather start fight with bit less mana and more rage but with this rage tends to go down very fast. Maybe later on I try it again but with current situation I think I am better off without the mod. Thanks for effort anyways.
I take there is no way to make it so I could trigger faster regen myself when I want to?