thanks, but i dont seem to be getting many replies :eek: i do understand the switch more though and the ONLY thing i dont get now is the parellel/series wiring! i'v changed my mind slightly on how the switches will work though, im gonna have an on/on/on switch for P90/MB/both and then an on/on for parellel/series, but i stil dont understand how to wire a switch for that?