Toyota Tacoma towing

Back to the question about 1200 lb bars the OP asked. I just faced this same question. How big is too big. I'm looking at about a 700 lb TW with a 5400 GVW trailer. I called Etrailer to order a Curt Tru Track with a 1000 TW 10000 rating and the salesperson told me it was too heavy of a WDH to buy and suggested less expensive lighter WDH's. I called Curt and they said it was fine and not too heavy. I called Equalizer and they recommended their TW1000/10000 hitch. I called a local hitch shop and they said 1000/10000 was too heavy and recommended a Fastway 800/8000 WDH. So the manufacturers were recommending heavier spring bars and the retailers lighter spring bars. Who to believe, the person that made the WDH or the person selling the WDH? I decided to believe the manufacturer and ordered the Curt. It should be here this week and I guess time will tell who was right.