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its really easy question to answer and its not any of the 3 things you have in mind.
21 dte and 16/5 is the answer. managing winners helps to but specifically for drawdown reduction the 21 DTE is more important
youtube.com/channel/UCOzuNy76QXMpXwAQCoMTXUA
if most tastytraders stuck to SPX /GC / CL /ZB theyd make so much more money. unfortunately tastytrade loves pushing the " trade small trade often" mantra. its that simple do that and you'll beat all of them