Before the disappearing icons under the nose, I got 90% of my kills from "under the nose shots".
Same now, except I miss a lot more

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But it is SOOO rewarding to pull nose up making the enemy disappear, stopping the pull and releasing some rounds, see hit flashes and a burning allied fighter on the way to meet the ground

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Baron Claus "StSanta" Von Ribbentroppen
9./JG 54 "Grünherz"
"Live to pull, pull to live"