Steve,
How'd you guys do? My son came in second in his pack and we did poorly at districts. Our district is reported to be highly competitive, though, and we felt our weight (center of mass) was too far forward.
Sorry I didn't spot this post b4 the races. I'd have loved to go waaaaay in depth. I think Dave Kamp's son will be eligible next year or so. That oughta get him to open up on the subject. I've been baiting him for a couple of years now, but he's only nibbled so far.