dave, how did you get 8+ volts with the .25 ohm mopar ballast? the best i could get was 6 volts. did you try the ru-11? i can get 8 volts with it, but it glows cherry red at the resister (no ceramic insulation on the back side, ). as far as running 2 resisters goes, i'm not sure if its practical or the right thing to do, just not that electrically savy.