Here is a video of some tunnel practice that Lian suggested. I started with using Oreo's ball at the end of the tunnel, and later switched to treats. I wanted to watch the video to see which made Oreo drive faster. Hard for me to tell. With the ball, he keeps running after the tunnel, while the treats make him stop. However, the treats may be creating more drive into the tunnel.
Regardless, Oreo seemed to LOVE this game. So, we will keep playing, and I will keep moving myself further away from the tunnel. Plus, we still have one more element to add - a jump after the tunnel. I didn't want to overdo it though. I switched between running with him, and standing still to try and keep his motivation up.
I think I need to increase my verbal cues and cheerleading. When we practice, I tend to concentrate too much, and forget to root for Oreo!
Sorry we're off camera in a few spots.
After dinner, I went back outside, and just for kicks said "go tunnel". Well, Oreo ran straight across the yard into the tunnel!!!!!!
He got lots of orbee time after that.