Based on the Pat Mac thing, and several others, I think we have a core group that has an appetite for training. Pat Mac worked (for me) because it was far enough in advance that I could plan for it. I just can't always do spur of the moment. And with 3 kids involved in activities all over creation, spur of the moment is less than 2 months planning time.
OM I liked your idea. I just knew I couldn't make that time frame. I hope it works out, or if it doesn't, we (I'll be glad to help) try and put this together for late winter.