Yes, adding washers will move more weight to the front axle. I think I read somewhere that a guesstimate is about 75lbs is transferred per a washer. You really need to do the wheel well measurements to verify once you add a couple washers. I have 57.14% of the total weight on the Armada with trailer attached on the rear axle for comparison. You have 59.48% on yours (A bit high I think). Looking at the math, try 2 washers to get right around 57% like I am. If you are really that light on the front end, you will definitely notice a positive difference when driving on the highway once it is tweaked. It may need more. You just do not want any squat (wheel well lower then it started) on the front end and want the measurement to have 1/2 inch or less rise. The wheel well measurements will tell one way or the other. All this without the auto leveling engaged between trailer hooked and not hooked. As for lowering the camper, you drop the ball on the shank down one hole. Easy way to find the correct amount. Have the trailer on a level surface on blocks not attached with the at the level height. Measure from the ground to the top of the casing that holds the hitch ball. Now do the same with the TV after auto leveling is done. You will measure from the ground to the top of the hitch ball. Move the hitch ball as needed on the shank to get it as close as possible to the casing height. If you make any changes, make sure your bars are level when hooked up. Take a gander at the install directions in the owners manual on the Equalizer site if needed. http://www.equalizerhitch.com/Equal-...structions.php
If you do not have the Equalizer, the height adjustment is the same on most if not all hitches.