Need advice on replacing my brakesmart controller

Call me crazy, but I think eight tires braking trumps four tires.

I have towed a large snowmobile trailer thru most of the northern states and three provinces on secondary roads and all kinds of conditions. I just might have learned a bit about braking.

How much inertia is there when you are about stopped on a hill and you are trying to hold with just the truck? Keep that hand control handy.