no problem John if you were running high boost (.7 bar) you would DEFINITELY notice the difference in the lower RPMs when compared to .5 bar at the lower RPMs
what i did was peel back some of the insulation on the black ground wire, spread the core apart in the middle and looped a my additional ground wire through there, I then soldered the wires together, taped them up nice and tight, and proceeded to wrap the other end of my ground wire around the bolt that hold the power steering reservoir bracket onto the shock tower
i hope this helps.......if it make sense
if not i can try and take a picture of my solenoid and wiring as it stands now later on today or tomorrow
Late,
Daniel