surge or electric brakes

One thing to remember is that Surge Brakes are Hydraulic and like a car if the brake fluid is not changed on a regular basis you will eventually be facing a major repair bill from Master Cylinder, Caliper or wheel cylinder failure. I also do not know of any type of surge brake or electric brake being self adjusting as most newer vehicles are. Either type will require periodic adjustment depending on how hard they are used. One advantage of surge brakes are the self limiting nature of the braking effect in that they will never try and slow the motor home down, just supply a slight push over the bare Motor home braking. Miss adjusted electric brakes can be adjusted where they are trying to brake the motor with their brakes more than the motor home brakes and consequently wear out faster, or worse not supply enough braking to slow down at the maximum rate when required. My personal preference is electric, having removed the surge brakes on my double axle 9000 pound boat trailer. Pick your poison, either is better than no brakes. It is cheaper to replace dolly brakes then motor home brakes due to excessive wear when trying to brake two vehicles with one vehicles brakes.