Maybe you'll be happy (or not so happy) to hear that I just fixed the tilt mech. on my game (that I've had for 6-mos. now). When I bought it, the conical shaped weight was there, but the rod was broken, so I found a piece of rod in my junk pile, and put a thread and nut on one end and bent a hook onto the other end, and it works fine now. I'm not much for putting english on the ball by rocking the cabinet, so after about 25-games, I've only gotten one tilt warning so far.
My supercharger test gave results between 99-122. Does 80 (your test result) mean that your ball goes faster?, or slower than mine? I was thinking that my problem is related to the diverter closing too slow (or maybe it's the ball going too fast).
By-the-way, Sprudel had a good question about using magnetized balls??? Maybe magnetized balls will get speeded up or slowed down when going thru the electro-magnets on the SC?
Grangeomatic (Jeff)- I'll try to remember to check for magnetization of the coil stop, since I plan on replacing the coil sleeve & spring. The SC will probably have to come off for me to do this. If I do find it to be magnetized, I don't know what I could do about it anyway???