Merry Christmas everyone. I have an ERRCo CC issue with a CR-8.0 version that I bought about a year ago and was installed in a 3rd Rail PRR T1. At its lowest speed step (I believe these boards ignore the first relative speed step from the CAB-1 and actually start at the second one), the engine hesitates and lurches. It stabilizes by the second and third step and high speed running seemed mostly OK. Obviously I investigated any sources of mechanical binding and antenna issues. This engine has a nice 21:1 gear ratio so one would expect very smooth starts and low speed performance. I have an R2LC-08 that came with it, set for large motor and 100 steps. Interestingly, I can not get this board to respond to disabling cruise.
I had a CR-7.0 CC laying around and swapped it, keeping the original R2LC. Slow speed performance was restored to expectation and the 7.0 board responded to cruise off commands. I also found this board does not ignore the first speed step which I like. I was told there was a reason for ignoring the first speed step but I can't remember why.
In any case, this engine now performs like it should but I'm concerned I got a bum Cruise Commander board. I am also wondering what the difference is between these two versions. I am assuming this version number I am referring to (from stickers on board) is the firmware version number.