I have a FAST and a LM1 with the RPM module, I have had troubles with both systems. I did upgrade the LM1 to the LC1 to get dual readings off of both sides of the motor on the same session, I haven't installed that portion yet, shame on me I like the LM1 better, it is way easier to read once you download the session onto a laptop
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
I like the LM1 better, it is way easier to read once you download the session onto a laptop 
