2014 3100RL Montana with a Demco Autoslide hitch Problems

I have that hitch together with the Trailair AirRide pinbox. One thing that Demco says is to hitch up with the pinbox slightly lower than the hitch's saddle and let the pinbox ride up onto the hitch as you back up. Never any problem.
As far as the safety pin goes, yes when the jaws snap closed, I usually have to pull the handle back out maybe 1/16" for the pin holes to line up. The jaws remain fully closed. I have 65,000 miles with this hitch with probably over 200 hitching and unhitching cycles.
JK