I know ideally you want it perfectly level but due to the lift of my truck and the size of drop hitches available I can't get it just level. The trailer is an 18' enclosed tandem bumper pull that weighs 4k or less fully loaded. With the biggest drop receiver I can find (11") the trailer is about 1. 5" lower in the front than in the back. With the next size drop receiver(6") it is about 3. 5" high in the front. I already have about 5 receiver tubes in various sizes and really don't want to buy any more so I was just wondering if it is better to have the front of the trailer a little low or a little high. I have pulled it around town with both and it seems to do fine but I am leaving this week on a 4000 mile trip to Canada and I want the trailer to tow good.