I have discussed it with the HS and MS principals, and they both agreed that meeting twice/week before school would be ideal. In the past, the ensemble met Mon-Thur before school, but hopefully we can get it instated as a class before that becomes the next step. What days before school will depend on the kids' availability, but that's not a bridge I need to cross right now.
Another question I have is what should I use to audition guitarists? I know a ton of garage players would jump at the opportunity to get to play in a group, but what sort of materials should I use? A prepared comping progression and a sightread melody of some sort? I could just pull straight from a Real Book for those, unless TYB has other recommendations.