P2 Brake Controller

I have a P2 Brake Controller. I installed it and went to pick up my first trailer, the guy i bought the trailer from got in my truck with me and set it up (programmed it to 6, then flipped the lever and the trailer brakes locked up, so he backed it off a bit til they didnt lock up.

Its been a month or two since then, i took my camper on its first outing and noticed when i stepped on the brake the display only read between 1-2 on the brake controller. Even when i was going down a steep hill or putting the brake on pretty hard if someone pulled out in front of me it didnt really go above 2.5 on the display. I kind of felt like i had to put the brakes on harder than if i didnt have a TT behind me to stop the truck. Is this readout normal for the brake controller? Should i feel any weight at all pulling my TT with the brake controller? The trailer fully loaded is about the same weight as my truck or a little less.

This topic comes up fairly regularly. In my experience the conroller is not a 'set it and forget it unit'. It does need to be adjusted for the differing conditions usually one setting for highway travel and another for around town or the brakes will lock up or as you indicated not appear to be working correctly. If your trailer has been sitting all winter you may have rust on the brakes and a few stops will usually take care of that.