You've gotten some good advice. Here a few more thoughts.
1. Remember it takes some time to become a good official.
2. Learn something from every parther you work with. It will be good or maybe bad... but learn from it.
3. Never become an official because you know you can do better than the guys out there. Not necessarily a true statement as you will see the first time you step on the court.
4. Mistakes help you to "own" the rules next time out.
5. Wear good shoes
6. Keep that uniform neat and clean.
7. Have fun...after all they are called games.
8. Use a Fox 40 whistle... preferably a cmg... and fill it up with air
9. Listen to the veterans. They have paid their dues.
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 That's my whistle -- and I'm sticking to it!
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