Jeff,

Snell approved helmet is always an option! Hey, when you guys combat, do have a "box" you stay within? Obviously not over the pilot/pits, but how about altitude or width? Some of our best fights a few years ago have been at 5 - 10 feet AGL with some really rip-snorting cartwheels. Also, the occasional high-altitude spar-snapping dive is good for kicks.

Oh, and John - regarding the Diamond Dust . . . . I don't think I've ever seen anything buzz so loud and go so fast so low so close. Makes 50' separation seem like 5! I'll have to get one of those Hogans Heros helmets with the spike on top.

Al