I've played ice hockey since I was a kid. I played roller for like 1 season and barely remember it. But anyway, I've been reffing ice games but decided to switch to roller because I missed the deadline and I figured there would maybe be a bit more hours. Anyway, I finished my test and I'm pretty damn sure I passed. But the rules are so damn specific. I just want to make sure I'm not missing out on any big picture things. No icing, no offsides, 4 on 4. I know the USA Hockey Ice Rulebook pretty damn well. I figure a transition to roller can't be too bad, right? I just might need some help in on-ice positioning. This is not for high level **** at all. Just adult and youth house leagues.