[rverdlm]

The Prodigy is not recommended for electric over hydraulic disc brakes. The reason is that it is looking for feedback from the brakes based on what would come from regular electric trailer brakes. I have a Prodagy that was purchased at about the same time as the trailer. At that time the hydrologic unit was built to give feed back that was appropriate. An engineer at the company that makes Prodigy told me that if it works OK then good, but it probably wouldn't work with another setup. He also said that the feed back is not needed with electric over hydraulic brakes. They make a controller that is just like the Prodigy that does not have the feed back system. The feed back system is trying to look at the voltage/amperage of 6 brakes and automatically adjust the current flow. I think this is what is causing the bucking.