Hello, I think that they are using both methods. Coach Casco mentioned both 1-2 foot and hop method. From my point of view, it is better to use both feet at the same time since you can choose your pivot foot according to the position of the defender. Also, when you use both feet you can attack the closeouts way faster with cross step or stampede instead of using 1-2 which is way slower. Just my opinion, both can be effective.