The more I think about it...my vote will be to try this class as a true Formula 40, rather than make up equations to let every other rider in. The point of the class is a "vet" style grid, and besides many of the Modern Vintage bikes are superbikes and not at a big disadvantage anyway. Keeping to the spirit of F40 will create a grid different than say, Amateur or RoR.

If the grid is weak in the first year because of the age restriction we could revisit the "everyone's eligible" ideas. I believe the class will be popular on it's own merits, and will group a new set of riders together.