I did try pulling the seals back, but it's a little bit difficult to see in there. When I'm back at the rig, I'll look a little closer. I'm sure there will be some debris in there (wood chips, plastic, etc). The scraped damaged area seems quite uniform, like it's simply rubbing on a flat surface. I don't see any gouges from screws, etc. The slide seems to ride in and out OK. No unusual noises or movements, so I don't think I'll adjust anything, but the vertical adjustment on the one side. After I get the vertical adjusted, I'll check the seals when it's retracted, and extended. Hopefully, they won't change much after the initial adjustment.