You know, come to think of it, I have not reset (read forgot) my controller from heavy electric over hydraulic used for my RV to towing my car hauler and my dump trailer, 6K and 7K axles respectively. I know empty, I have to turn the gain down to keep from burning the tires off of them. I would have thought heavy electric would provide more signal/voltage than EOH, but then there you go about ASSuming.
See, I think the more folks throw info at this, the better we'll figure out important facts about it.
Can't hurt OP to try.
Cheers, Ron