...prospectives have the option of staying a half or whole day - which might work well with this whole idea.

Also, pairing the prospies with upperclassmen might not work so well. Yeah, it would be great for someone who wants to be involved in theater to come to play practices, but unless a subbie was in the play, it probably wouldn't be best for the prospie during the rest of the day. It would be better for them to see what a subbie day is like - because that is the grade they would be going into. Then if later they wanted to see what a play practice is like, by all means, put them with upperclassmen if needed. There, at least, there wouldn't be classes that confuzzled them.

But that's just a thought. :D