Rob, I'm using the LM1 with the RPM converter interface and I did have to configure the LC1 to match the LM1. I have talked to two different techs at Innovate, Felipe(vey helpful) and Court(SP?). I'm going to switch the sensors from one side to the other and see if that proves anything, if not I will call Felipe and see if we can figure out what is wrong, I'll ask about how to run them in chain, I'm almost certain there not now I don't know how to do that. My LC1 is putting a square wave out on the data transferred to the laptop after recording a run I'll see what happens tomorrow and let you know on this post. BTW, I also have a FAST system, it has been in twice for repairs so far and I'm not a happy user yet