Yes I think the throttle is fully closing as it stops, then the front part that hits the switch continues and stops against the thread, also if I pull the cable towards me there is no further movement!
I just rolled a small amount of foil into a ball and attached it to the front metal thing that touchs the switch with some tape, i lossed the cable slightly and it seems to be switching now! I know this will not last five minutes but it will tell me if this is the problem!
btw how far does the tiny switch stick out? as i said mine oes not extrud the plastic, huess it should really to work!