Weighing in on the whole how high to swing the bell.
I think the best answer is to just lift the bell with a hip snap and let it travel however high it goes. It is all in the concentric and eccentric phases of the hip snap
CFish "American" Swing encourages people to use their arms. When people use their arms to pull a KB (or DB, plate, sandbag) whatever overhead, they are missing the entire point of training with a kettlebell.
DB Swings overhead for high reps is a good way to get someone to breathe hard, but again, breathing hard is not the main point of KB lifting.