Mike,I am using Futaba's MC9100A-same as the OS 100Amp speed controller. I am using the referenced example shown on the OMR-4043-172 instruction sheet, but engine won't arm and does not work. I suspect the problem is in the setup. Please let me know the settings you used to get the engine to run. Yes I am using the OPC-1. I would like to know the motor pole number setting you used and the gear ratio setting.
Thanks in advance for your help.