BR549 Most important there is how does it tow and are you under your trucks payload/axle rating. Manufacturers have been starting to reduce pin weight in the engineering of fifth wheels (particularly the 150 series). If you are experiencing sway (rare with any fifth wheel in my experience) then I would be looking at shifting weight forward, but if it is towing okay and you are within the trucks specs I think you should not worry about it.

My previous trailer had a pin weight at 18% of the trailer weight and towed just fine. Don't get caught up in these min/max numbers as gospel.

Most of the truck manufacturer towing capability charts use 15% as the pin weight for a gooseneck or 5th wheel trailer. There is data to demonstrate that a trailer with less than 10% tongue weight becomes unstable. I have not seen any data on minimum pin weight for stable towing of a 5th wheel trailer . . . but, I don't see how the trailer is going to know whether the tow point is over the axle or at the bumper of the tow vehicle. I would expect that a 5th wheel with a pin weight over 10% would remain stable just like a bumper pull TT. The "guideline" that a 5th wheel trailer should have 20% to 25% of GVW on the pin seems to be a bit of "its always been that way" history with no data to back this up.

Rob