2HG - Creating a Fun Experience for Everyone
Great article - I do have a couple of other 2HG rules I like to announce at the start of the tournament myself (btw - I love judging 2HG too. :]).
1) End of turn extension is 3 turns instead of 5. Most players may not know this rule, so I think it's good to mention this so they know what to expect if their game goes to time.
2) Starting team skips their draw step. I get asked this question all the time. Since with most other multi-player games the starting player draws a card on their first turn I think it's important to announce.