I have done some more research into this, and I have found that only two companies will actually put a weight rating on their hydraulic tail, and stand behind it. Brute says their trailer will lift 7,000 lbs, and transport 12,000 lbs. Larger cylinders will make it lift more. Red Rhino says their trailer will lift and transport 10,000 lbs.
I called Load trail, and looked at one of their trailers up close. Honestly, I would be afraid to put any real weight on Load Trail"s folding support system. Additionally, they wouldn"t state what it would or would not support safely. I just wouldn"t buy a trailer if there is space you can"t use.
I spoke to Brute, and saw pictures of their support. It transfers the weight directly onto the axle, which takes the weight anyhow. I think I would have more faith in their system than the sliding sub frame that Red Rhino uses. In time I think weight and vibration would wear on that sliding frame, and it would crack. Plus, I can"t seem to find anyone that knows much about Red Rhino. Additionally, I don"t feel that Red Rhino"s tubular steel construction is a plus. It may add strength in some ways, but it creates other problems. I think traditional I beam and channel construction is a better choice.
Brand to brand, I think it depends upon what you want in a trailer. Brute seems to build a well built heavy trailer, but then they build specialty heavy haul trailers too. Others like the Load Trail are clearly built lighter so the don"t eat into your capacity. They may be sufficient for many, but I have a 12k Pequea deck over that is built with heavier steel than the Load Trail gooseneck that I looked at. That was not impressive to see. right now it seems the Brute trailers makes the best Hydraulic tail Gooseneck, and since they build them to order, you can have them build whatever you can think of.