I would like say thanks to all the folks in this old thread. I just picked up a CV and it had a slam tilt problem. I have had a lot of Williams Bally wpc machines and I have never encountered a slam tilt problem til now. CV is a very different design in some respects and has some unique problems. The advice given in this thread is valuable and timeless. It kept me going in the right direction even after I was in doubt. I discovered that everytime I hit the left lane target the machine would slam tilt. The LL target was not the problem, matter of fact nothing in the entire row was problem. LL is next to upper ring master switch in the column. The upper ring master switch was shorted and everytime the LL target was hit it caused the slam tilt. I could see where this would be a common slam tilt problem because the Ring master switches are so tight inside the mechanism. If you change out any of those three switches you have to be very careful that you get the new ones back in there just right with wires correctly routed. Thanks again folks for helping another pinhead.