has anyone plumbed one in before?. i would have thought it best to plum the electical sensor in at the end of the fuel rail just before the return after the last injector, i plan to machine into the rail there and want to see the pressure at its farthest point from the pump and closest to the last injecy or perhaps at the start / in the middle, underneath.. floating :toke: any thoughts? im almost sure there will be a drop across the rail.