to jump on the n00b bandwagon here, I run solo endurance, and NovO when I can, mainly for cost reasons.

If I were able to get 2 sprint races for the price of one (as long as I am understanding Glenn correctly), I would be all over it.

but, if you get rid on the nov/am classes in favor of making most of the current classes Am, instead of expert only, I'd be afraid that you are getting rid of too many entry level classes. for me, the idea of a (slow, in my case) first year novice running in OSB is a bit daunting.

I can hold my own mid pack in the nov classes, but I would be a big orange mobile road block in the other classes.