I called USFS and spoke with them. Wow! They were very nice!
The lady I spoke to said it is fine to participate in this event. She said the rule I referred to was not intended to apply to "Open-Registration Adult Events." She said she understood my confusion, and that she was going to contact the Adult Liasion in order to have some kind of clarification made.
So it is fine with the USFS to compete in this event!!!
There are Adult Camps at Lake Placid in June and August in case anyone wants to check out the ice/venue early. It's going to be so fun!!!!