I bought a 25' (including tongue)Skyline today. Trip home was about 120 miles 20 of which was freeway and the rest was highyway consisting of tons of curves and hills. I averaged 10.8 on the EVIC. Rated at 4100ish empty. It towed just fine and I dont have a WDH yet. Barely drops the rear end with it empty. Also, the factory brake controller I installed seemed to work just fine. I have towed my 2500 lb boat a bit but this was my first TT. 2010 TRX4 with 3.92s.