Would you be able to email me your code, I'm unable to make my x6 spin at all using an Arduino. I've tried using the open brake and motor running commands with no success.

Thanks for the response Max! I have a feeling I've have to go a similar route as I will be needing fairly slow speed/high torque movements. However, I will also be switching to RMD-X6-S2 units once they arrive which I believe are on an updated controller compared to the RMD-L. If possible it would be great to pick your brain about your project/success with these, if you could drop me an email at matthew(dot)norman.-ND(at)natgeo(dot)com I'd greatly appreciate it. (. and @ removed from email to reduce chance of spam)

HI Max, Did you ever get an answer for this?