This is all making my head spin!
By coincidence, I happened to be looking at youtube yesterday at some videos of Lefty Kreh. His style is definitely his own.
Then I looked up Mel Krieger (to whom I owe the double haul), Joan Wulff, Steve Rajeff, Peter Kutzer. They all do it differently. What's in common is the stroke is smooth, the line unfurls, the forward cast accelarates smoothly to a stop, they don't overpower.
One of the things that helped me learn to fly cast (I taught myself from a book) was when I realized that the physics involved is the same as what you use in cracking a bullwhip. It's just done at a different pace, different angles, and is more a matter of finesse. Those gymnasts that run around the mat with the long ribbon are also using the same principles.
Also, "fling the tomato," "flick the paintbrush," helped.