I recently bought a new [used] truck to pull my two horse bumper pull with. I had the weight distribution set up for my old Suburban, so I checked the height and saw that it needed to go up a hole. (This is a round bar system, no sway control.) Anyway, I was at a show today and my trailer was parked in a level parking lot. As I was walking back to my trailer, I noticed the trailer was actually unlevel -- the front was slightly higher than the rear. (I've only driven the new truck and trailer twice -- at my last show they had me park practically on a side slope, so I didn't notice it before.)

It wasn't until I got home that I realized that I had accidentally put it on the 4th link (which was for my Suburban) instead of the 3rd.

Anyway, now I'm curious as to whether I made a mistake putting the ball up higher. I redid it according the manufacturer's specs, which was to have the ball height 1/2-1" higher than the the coupler height. After looking around on the web, some people say to put the ball l/2"-1" *lower* than the coupler. Which is correct?(Unfortunately I lost the sheet of paper with my wheel well height measurements, but IIRC the rear wheel well was at the same height when the WDH was in place.)