Hi Cheryl,
I couldn't see the end of the DW very well. Was the tunnel entrance in line with the DW, or was the entrance just front of it just a bit? Either way, I'd use some version of a flip or switch or turn (depending on what you call it). Alva has a tough time with those (as evidenced by today's CPE runs with tight 180s) so I need to work on them, too, but we work on contact-tunnel flips quite a bit in my classes, so he's familiar with the move. I had a hard time devising a way of teaching him "wrap" since he can't see that signal in that direction, so I just ended up using body movement and a switch command and that seems to work, but not efficiently. We'll keep figuring out a way to do it, and practice more. Good luck working out something that will work for Koji.
-dayle