It's probably different in every state, but in VA competition season was from August- beginning of November and that's the only time we were allowed to compete. But, varsity sideline=varsity competition at our school, so we continued to practice new stunts/tumbling etc throughout basketball season at sideline practices to get ready for next year. That seemed to work pretty well for us. I think I would actually like this better because you could constantly switch stunt groups, try new things, test out new positions, or do whatever without focusing on a set routine or worrying about comps. I don't think I would have wanted to still be competing in to the spring.
@CheerBank do you know when the fall season technically starts? Ours started the first Monday of August, with school starting after Labor Day, so we had time throughout August to attend camp. Although we were allowed to go out of state for camp, not for competitions though.