I just installed this product. The instructions were off as far as the starting point for adjustments. I previously installed hitches for a living so I am not a novice at this. The proper adjustments involve tilting the head. In the furthest tilt position I could not close the coupler on my trailer. After about 2 hours I finally got the adjustments as close as possible to ideal. The front of the tow vehicle (2013 RAM 1500) raises about 1/4" and the rear drops about 1 and 3/8". My only disappointment is that the front of the trailer is a little high. I contacted Curt Technical Department and after reviewing what I did they agreed that I installed it properly and this was the best adjustment I could get. I would also note that the head assembly is very heavy and I would not have been able to install it alone without a floor jack and it will not be fun installing and removing it during normal use. I am impressed with the quality of the product which is typical of Curt Mfg.