No power or brake issue - just how much sag you have - depends on weight and tongue weight of boat on trailer! I prefer the Raptor R to the TRX - but both are awesome! Here are a couple of video to get a good comparison of the two towing. A little bit apples and oranges as one towed a jeep with all the weight on the trailer - the other a 5k trailer with a moto spare in bed - both had about 3" of squat. With WD hitch you can tow to the max with total comfort.
Raptor R Tow Test 8.3k Jeep - open trailer
link:
TRX Tow Test 5k - open trailer - 4 seat can am + moto and spare in the bed - total load about 7.2k