When Iwas younger [before Ideveloped gray mater} Iwas racing GP bikes. Iwon enough races that I was moved into the expert class. All that meant was Iwas winning money and I could make money from a sponcer or be paid to ride for different owners. Ithink the correct term should have been the PRO class, all it meant to me was I raced against better riders and got beat more often.
The four time winner Iwas talking about that called himself a PROand not an expert was named Chip, one very nice guy and willing to share tid bits he had learned over the years. If asked!!