Slice serve creates backspin for a lower bounce, making returns harder and pressuring opponents. Flat serve is simpler but can result in high bounces off the wall if not controlled, potentially giving opponents an advantage.
This lesson is really helpful if you are trying to figure out the best way to serve. Sven clearly breaks down the differences between serving with slice and serving flat. He highlights how slice can give you an edge by keeping the ball low, while a flat serve needs to be controlled to avoid giving your opponent an easy high ball. It's great for understanding serve tactics.
