Well, it's not going over 13vdc at redline and still charging at idle, so I think I'm good. Just caps, no battery and the $55 trailtech regulator.
The regulator is awesome... You can adjust from 11vdc all the way to 14.5vdc with the potentiometer. The reg/rec combo is being powered by the higher output coil on the dual 12v coil from treats using the wiring diagram followed posted earlier in this thread. (edited)