Thank you Bruce! Appreciate you stepping up.
To help with set up you can elect for course 2. Which is to G1 and back to the finish/start line. That way you don't have to mess with a rounding mark (the inflatable cylinder). If you do want to do a two turn course, and use the cylinder, then ask a competitor to adjust it and/or the tetrahedron as needed. Team effort! Or you can just announce an ammendment and run one of the frostbite courses. Just announce your intent on the radio. Again thank you!
Hopefully you can get three races in! Remember no race start after 1400.