Pardon my ignorance, but I don't understand the "pivot pins" that you are referring to in your post. Where are the "pins" located? We have a TrailAir system with Tri-Glide on our 2010 Mobile Suites. We've not had any problems, but then, we've not towed our MS as much as most people have with their DRV's.
Here is a picture of ours as it was when we picked it up at the dealer's.
If there is a real issue with the TrailAir system, maybe I need to get in contact with Lippert, although I think ours came out before Lippert got TrailAir