My two cents worth. I was taught, and found it to be true that the trailer brakes should activate just prior to the TV's. That will help prevent "the tail wagging the dog" effect. We have been towing for over 5 years now and the only time I have used the slide switch was (and is) to test the numerical setting on my controler before pulling out. Question to bsmeaton - If the tow command is integrated with the ABS, does it transfer that brake action to the trailer brakes? A new SD is in our future and I bet the salesman won't know!
