My sons SMC2 was recently moved. It has Ron's GEN2 mpu. I have RTFM and Ron was adamant about making sure the carry over switches are open and never close on the 2 Limit switches that control the reversing the mech at end of travel L/R. or the mech will have motor run on and the mech runs past the ramps and crashes at the ends. This 1 does that and I made sure they r open. I found they must have tie wrapped the mech for travel in the Detent sw area and it was bent and not functioning. I bent the bracket back and I can see the sw open & closing. If I run Ron's test #1, it does not show the pulse timing . Instead it just shows mech position , like 135, etc. Is the timing of the detent sw critical that would cause this not to work? Any ideas to try? Thx, Kent