Wish I had the Trail Aire pin box again. My 5th Airborne is better than no aig bag type pin box but nowhere near as good as the Trail Aire I had on my previous trailer, same model.
My Alpenlite 34RLR Ltd. was also quite heavy I found that I was frequently having to air up the bag. It was taking 90# to get it up to the line. Way too much. Contacted the Trail Aire service people & they sent me another, bigger, bag at no charge. The change out was easy. Aired it up to the line. 60#, right where it was supposed to be. Much better ride.