I don't want to get in the way of a good rant, but:

Bob Merrick - H-16, H-14
Chris Wessels - H-20, H-16, H-14, Wave
John Mork - H-20, H-16, H14
PU - H-17 (retired)
Lori Mohney - H-16, former H-20
Myself - H-17, H-16, Tiger, H-14, former H-18

Steve Cooley (MUST429 on this forum) is hardcore H-18 (2nd at North Americans last year) and is the Division 5 Chair.

Strange as it may seem, the H-18 is still an ISAF International Class and changes in the class rules are controlled by the IHCA (not the North American HCA) and ISAF.