So cruel...
I dare anyone to brag about their casting abilities into a 20 knot wind...
My experience is that all the video's in the world don't really help you in real-life wind situations; that experience is the only lesson that matters.
Once you start w/. positioning your boat, adjusting it for current and surf, dealing with the wind, figuring out how to cast off the pitchuing patform so you don't wrap the leader around the rail, the console/whatever your into a zone where experience, not video's are the only master.
My hard learned experience is that if I can consistenly deliver a 40' cast in any way shap or form, to a 180 degree arc, I'm going to hook up. The hard learned aspect is how to get the boat positioned; where to cast from on the boat; forehand or backhand and how to avoid catching the boat with the line.