Cat scale analysis. Question

Finally was able to get to a cat scale to weigh rig. Weighed our truck first. Ford F-250 super duty with wife and I ready to camp minus 4 small dogs they camp with us always. 40 lbs total for them. Total steer axle 3800 and rear axle 2840. lbs. total 6640 lbs. then I weighed truck and TT 33 ft wildwood. With WDH hooked up 3420 steer axle and rear axle 3920 lb. 3rd pad weight (TT 6300lbs) Total weight 13,640 lbs. my question so I understand. The WDH transferred 700lbs to tow vehicle? I did not weigh TT with WDH disengaged. My trucks
Gcwr is 19k lbs so I know I'm good there, and it's gvwr is 9k The TT gvwr is 7720. We pack light and tow with empty tanks. Just trying to get an idea of what extra weight we could add if needed.

If it was my set up I would tighten up a little on the hitch. You took off almost 400 pounds from the steer axle and added almost 1100 pounds to the rear axle. I would look at maybe 200 pounds more on the front axle and see how it tows. If I am reading your numbers correctly you are at 7340 for the truck when hitched and 6300 for the trailer. This is the total you produced that is 13,640. If 700 of those pounds are tongue weight from the trailer and your trailer has a gross weight rating of 7720 then you are really at around 7000 pounds for the trailer. As you indicated that you travel light you have very little room left when adding water at 8.3 pounds times your gallons that could easily leave you with less than 300 pounds to spare if your water tank is 50 gallons. You said you don't travel with water and that is probably good for your 'reserve' calculations. Part of the tongue weight could be the weight of the hitch. It probably would be best to weigh your trailer alone on the scales to get your real weight. If you subtract the weight of a hitch you could be near 600 or 625 pounds tongue weight, a little light for loading as you want more like 12.5 percent of total trailer weight on the hitch.