I just put GE NightHawks in mine. Before the new harness, with the lights on, I'm getting 10.79 VDC to the hot side AT the bulb, it drops to 10.22 VDC on brights. Nonetheless, in stock-wiring usage, the NightHawks are the brightest bulbs I've ever had. They're a clear bulb, BTW. Let you know how they are when I'm feeding them the whole 13.8 volts that my system charges at.
I'm thinking I won't even need the Super-Bulbs.