[bikestuff]

Here are some pics which describe the issue....

This pic shows the top of slide (extended) looking toward front of coach.  The light that you see is the gap between the seal and the top of the slide.  (seal is inflated).

   

This pic show the "tongue" and the "slot".  The front edge of the tongue is hitting the wall.  Its exceedingly difficult to get a good picture describing the situation.  You can see the damage on the top part of the slot when the tongue was too high.  (Now its too low).

   

Closeup of the slot.