2010 2500 Ram, the trailer is not the issue, so lets not discuss that.

Doing a little bit of poking around on the 'net this seems common with heavier trailers. My factory controller worked fine with my open trailer. Now I have a 28' enclosed trailer. Lets say it weighs 10K. Even with the gain set to 10 (Max) on the controller, it doesn't do hardly anything. I can watch the braking bar climb on the EVIC and it hardly moves, maybe gets to 25% max even when I'm trying to stop and on the trucks brakes much harder. BUT if you apply the brakes manually with the slider, the trailer stops fine.

Has anyone found a fix or installed an aftermarket controller in their 2010+ truck? Thinking about just ordering a Prodigy 3 but not sure if thats going to set off warning lights and alarms with the stock controller bypassed.