Factory brake controller question???

I have the factory brake controller in my Ram 2500. The setup instructions for the Ram are almost identical to the GMC controller. I had the same problem not being able to lock up my brakes manually. So I set the controller gain to about 7 and drove a bit playing with the gain. I wound up being about 3.5 in slower driving to about 5-6 on the highway. During my first trip this weekend of about 250 miles, the Ram factory controller worked very well.

I have to say I think the Prodigy P2 that I had in my 2007 Ram was an all around better controller.