I seem to remember hearing Rob Grady say that the added weight of the door launcher solenoid will require the torsion bar to be adjusted up another notch or so. In order for the system to work flawlessly, everything else has to be working just right -- the doors should be properly adjusted and not sticking, the torsion bars shouldn't be over or under torqued, the gas struts should be of the dampening variety where they don't allow the doors to bounce at the top end of their travel (unlike the ones currently on my car.) Rob's system only uses one solenoid to actuate the door handle. I have heard of someone rigging up their own launcher, but it used two solenoids -- one for the door handle and a second to give the door a push off the door sill. The two solenoid method might work better on poorly adjusted doors or with weak struts. But any extra weight in the door requires that much extra tension on the torsion bar. Walt Tampa, FL ----- Original Message ----- From: <nickbrom@xxxx> <snip> >are > there any alterations that need to be done so they work effectively? > You know, like over-torquing the doors by a notch?