Has this technology proven accurate and reliable? If so, I agree that is a good idea.
Would it be safe to presume that safety equipment similar to that required for T-500 will be required? Sounds like their past trips have been pretty casual, but this sounds like a formal race thing...
I also agree that certain "qualifying" races be used to show the organizers the teams are up to the challenge. Like what was suggested earlier - KL steeplechase, Keys 100, T-500 (optional), OBX 500, or other coastal races 75 km or greater...