This not only puts less strain on the body, but permits quicker reaction to a ball hit back up the middle. Every pitcher is different. What is written here is just a guide. Use what feels best for you. Always be open to suggestions and willing to learn.
Pitchers constantly exchange tips at tournaments.
Some ideas you might try immediately and some ideas are better left for attempting in less competitive situations. They key to success is consistency. It is the pitcher's job to throw to the hitter's spot. In most cases, the pitch can be adjusted easier than changing the swing. Most hitters will have a different practice swing than what occurs when actually swinging at a ball.