Best way to check trlr brakes AND integr brake controller

The IBCs are smoother operating, using the pedal. When operated manually, they are similar to other types.

If you used the same IBC last year, and it is not working as well this year, then yes, the brakes likely need to be adjusted.

My IBC works great, it is set at 5, and will just lock the wheels, when quickly grabbing the manual control at 20 mph.

Jerry