Air lift question

I have 5000# bags in my truck. They were installed due to my carrying 2000# of wood to heat my house, stone and fill. Empty I run 10# of pressure, towing TT 21# of pressure depending on what is in the bed. I set the W/D with the bags aired up and had no trouble setting the hitch. They probably add some stability and take out a little of any pogo effect with the TT but my reasons for adding bags were dictated by the aforementioned circumstances. Another advantage is that generally with a properly set W/D the truck will still sit low in the back and when using bags the TV will be level and towing at night your headlights will be aimed more properly.
Good Luck

Doug