If Irish says your covered I would feel comfortable working. I am sure he has been down this road a time or two when tourney rules conflict with the actual rules.
This weekend I worked a 'showcase' that was 'ASA' but free subs in pool play and only 8 after 5 as run rule. Rune rule didn't come into effect, but you should have seen the confusion on coach's faces when I didn't want to write down the changes on the lineups I didn't take at the pregame.
To be the first to take a thread off subject, found a great Microbrewery in Raleigh, but man it was hidden!!