I had the same question and ended up getting the Hensley trailer saver BD5 because of the reviews. I hope someone chimes in with how they are , seams simple and very light compared to other sliders on the market. I had a 18K demco autoslide, the in bed part was around 170 lbs plus the rails and under bed was about 70 more pounds. That hitch worked well and zero effort to turn 90* backing into a site.
2015 42' Redwood RL38 Morryde IS , disk brakes, 1920W of solar with Victron everything,Battleborn, 2020 GMC DRW 3500HD Hensley BD5 air ride hitch