My first trailer was 5600 lbs loaded (per CAT Scale) and had 960 lbs of tongue weight (per CAT Scale) which is 17%. I then bought a Sherline scale and worked to keep it under 850 lbs which is closer to 15%. I had 800 lbs bars using a Reese Dual Cam system. I didn't want heavier bars due to the weakness of my light weight frame on the trailer. I used it for over 8000 miles and 5 years, no issues. I was pretty happy with how it towed, even towing it with my wagon which was admittedly overloaded.
My current trailer has 1200-1300 lbs of tongue weight per my Sherline. I've never CAT Scaled it. I'm guessing I'm close to the 7900 lb GVWR of the trailer on most trips. That is over 16% tongue weight. I still use the Dual Cam system but with 1200 lb bars now. No issues other than the poor Dual Cam mounting system which I believe I finally have fixed.
