I e-mailed this worksheet to the entire league, asked everyone to download the new rules and do their best to answer the questions, and then we met a few days later to go over the scenarios. I think it worked beautifully; everyone came prepared, had thoughtful questions, and within a few minutes we were going over complicated scenarios without anyone getting (too) lost or confused. Skaters volunteered to get up and act out some of the scenarios, and I feel confident that everyone left understanding more than when they started.
Since it worked so well with my league, I wanted to share the worksheet publicly. I've Creative Commons licensed this, so feel free to modify it to your heart's content (see the end of the post for full licensing details).