I'm new to towing, other than a U-Haul here and there. This is my first experience with electric brakes. I have a new pop-up trailer and my question is whether I should be able to lock up the trailer brakes on dry pavement using the manual control on the controller. Not that I should be able to do this if it is adjusted correctly, but should it have the power to do this if it is set to apply maximum braking? Nothing I do on the controller I have will allow me to lock up the trailer brakes on dry pavement even though the instructions make it sound like I should be able to.