I'm sorry, but I've been towing commercial trailers for the last 13 years and you're quite incorrect about putting 1/3 of the weight on the hitch. Here's a great example, a class V hitch is rated to tow a 12000lbs trailer with a maximum tongue weight of 1200lbs. I will guarantee you've never had 5000lbs on your tongue before. The tongue rating on hitches are generally 10 percent of the maximum tow capacity. So if we go by your 1/3 of the weight goes on the tongue claim, you'd only be able to tow a 3600lbs trailer with a class V hitch. A correctly loaded bumper pull trailer should have a nearly neutral weight distribution over the axles with a small bias towards the front of the trailer. The only bumper pull trailers I know of that are designed to put a large weight distribution on the truck are pintle hook trailers designed to be put on the back of big trucks, but we're talking about car haulers behind a 2500. Now I'm not suggesting I haven't from time to time put way more than the rated tongue load on my truck, but that doesn't mean it was the best of choices.
A pintle is just a type of tongue attachment, it is not a different designed trailer. Myself and my entire family and some good friends tow commercially. I been doing it for 20 years and tow my own trailers with my dmax. If you tow commercial, I would hope you should already know how to tow properly. Yes that is the rating of a class 5 reciever, lol. Now your finally starting to understand the purpose of a light truck and what is considered safe to manufactures. Like I said before, we load our trailers to fit our personal needs. Don't think that a sticker, by any means, is a limit for what someone will do. Everyone always put their load over the trailer axles so the light truck doesnt get as much weight just like you claim. Have you even pulled a 15k+ trailer load behind your 3/4 ton truck? That load is not light on the truck, unless you put the load only over the axles. If you were to use the entire deck and distribute the load evenly over the entire deck, you would realize what I am trying to explain. Take that bitch over the scales and see for yourself. Oh, and quit trying to claim you know what weight I have put on my truck before. You clearly don't even know, lol.:angel: