When I accelerate and shift normally the revs drop in between shifts. Since I fitted the HIF44 it doesn't do that right away. When I'm at a traffic light and I touch the gaspedal, the engine revs up and then slowly drops down agian (several seconds pass) but not responsive like it used to be. Is this the fault of a weak spring? I tried 2 different grades of dash pot oil but to no avail. Maybe a sidequestion: what is the little springy disk for in the throttle disk?