I just finished shopping out my BSD and when i turned it on fuse 901 blows. I rebuilt the flippers just incase that helps anyone. I have blown 3 fuses so far trying to work out whats wrong. With no fuse in f901 i turned pin on  and tested all the solinoids and they all worked properly. All except the left flipper, the right flipper works also. An interesting footnote....with the pin turned off i have tried to put a fuse into f901 but it sparks like there is power. Don't know if that helps. Any help would be appreciated.

Fuse blowing............something must be shorting out. Test wires/transistors associated with the faulty flipper back to the fliptronics board.