Re: anybody using a equalizer weight distribution with surge brakes?
Is tongue weight GREATER than 10% of your total towed weight? Sway is usually caused by light tongue weight. You are going to have to weigh the rig, both with the rig hitched, and with it unhitched to find tongue weight. You can position it on the scales so that the boat and tongue jack are on one scale, and the rear axle of the truck is on another, and the front on yet another. Simply crank it off the ball and reweigh. Make sure your gross rear axle rating is not being exceeded. You will need weight distribution when 13% or so of the total trailer weight, when added to the rear axle, exceeds its weight rating, or the weight causes too much squat. Weight distribution will transfer some of that tongue weight to the front, and some back to the trailer, but will normally improve towing performance. You still want as much tongue weight as the weight rating of the rear axle will allow. Try this approach before you get weight distribution/sway control. People speak well of that hitch on RV.net, so if it works with surge brakes, that looks like the best choice.