I always think that people have to be open-minded. I mean if you do sport, you have to try many sports in order to know what is what. If you do fighting sport or some of martial arts, you have to try even few fighting sports (I will discuss this in other post). If you want to be professional in your field, look at it from many sides.
Karate. Honestly I am sure that it is very useful for a fighter to be a judge. What is even more important – to be a referee. To take a look at fight from other side. From the side of those who decide who is the winner. To be a part of judges and referees seminars. To be a part both of fighters and “gods” πŸ™‚
Why judging is necessary for fighter? Simple – you start thinking not only from a side of fighter, but also from a side of referee. You understand how referees feel at some moments of the fight, what sometimes forces them to make some decisions, what is the psychology when you are standing on tatami as a referee too.

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When you understand this you become more powerful as a fighter. If you are smart enough you can fight not only against your opponent. You can use some “smart power” against referees and judges too πŸ™‚ Is it something bad? Oh no, you just understand some “rules”. You understand how you should look like on tatami, what your face should show, how you should represent yourself, how much respect means, what moments are remembered best. You understand that some small things (fighters think like this) means so much for those who decide whether you win or loose πŸ™‚
Be smart. Not only keep working. Look at fight from many sides. And use information you get πŸ™‚

P.S. What I found! Our superstar Lukas Kubilius was standing in both sides (fighter and referee) since long long ago :))