Well, he has a Tiger main and a Tiger spinnaker and snuffer.

I would think the only differences between him and a Formula 18 are the wings, the larger jib, and, well, he probably has a comptip mast.

Anyway, I am just wondering whether anybody has tried to convert a stock Hobie 18 into a Formula 18. What is required to do that? A taller mast? And an untapered mast?

The Hobie 18 and Formula 18 are basically the same minimum weight with all equipment on board. There are LOTS of older Hobie 18's out there, so why can't we get them into the Formula 18 class? Is it because you-all don't think they would be competitive? Or what?