Congratulations
That's the single best upgrade that you can do to any towed RV.
One question - did your installer use new caliper bracket bolts ? A guy on another forum found that while he had new bolts, his installer never torqued them to 35-40 lb ft and it cost him a new bracket, a new brake line and a day of a welder's time to fix the axle flange along with a couple weeks time waiting parts.