My original thought was to replace the weave poles with a jump, but when we ran the course it seemed a little too easy. I replaced the jump at (51,20) with a teeter hoping it would be a more enticing obstacle for Belle coming out of a tunnel than a wingless jump.
My main objective with this set-up is directing Belle to a variety of different obstacles upon exiting the tunnel. There are four logical possibilities in the first exercise. The dog could also be brought back over #3 as a fifth option.
The course can also be used for jump/tunnel discrimination exercise. There are also a couple of serpentines embedded in the course.
Here's some video of Belle and me working on the tunnel exit discriminations. I have nestled this course within the space defined by the dogwalk, A-frame and weaves, which were already set up from a previous course.