Honestly, there is no standard that everyone agrees with or even suggests at least at the HS level. I do not even know of one at the college level, at least on the Men's side. This is just one of those personal things that is about style and personal look.
I personally only go from 12 to 3/4 and close my fist. Never been told to do anything different and I like how it looks for me.
Peace
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Let us get into "Good Trouble."
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Charles Michael “Mick” Chambers (1947-2010)
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