From a Private reply from Kraig and the reason I'm not running Amateur this year.
Originally Posted by Kraig
Moose, the information I got from Scotty was if you get sponsorship help from any R/C company and even a non-rc company like Ace Hardware you are still considered a sponsored driver and will not be allowed to run in the amateur class.
Kraig
Green Bay Packers shirts are a favorite of Scotty's