I seriously hope you're kidding. I mean, last year , odd numbered teams got to go, and this year, if only prime numbered teams got to go, it would make it really difficult for even numbered teams to get to nationals (again). Now, if you said all non-prime numbered teams, but then again thats more than half so that doesn't help anything now does it?
hmmm, how about all rookie teams that won awards at their regionals last year? or all teams that have doubled in size since last year (the whole spreading the spirit of FIRST thing)? That would work for me lol
But seriously, while doing the even/odd thing probably wont be feasible this year, any serious ideas that they might very well do, or that may be fair for ALL teams? (should I start another thread with this?)