[Golfie McG]

By the way, since we are talking about pitchers...how about we mention batters!

Batters do not turn their shoulders 90 degrees! Yet they generate a lot of power with their bats.

How do they do that?

Having watched frame be frame video of Mark McGuire hitting a ball, the source of his power was pretty clear. He had a ton of "lag" in his bat and his hands were out in front of his "bat-head".

Is this still the physics thread?

Trigolt,

I'm sure that home run hitters have 90 degrees of shoulder rotation prior to impact - check out Barry Bonds:

http://www.usatoday.com/sports/gallery/bonds/flash.htm

It's just a different 90 degrees.

Lag is technique and the answer to "how do I get seemingly effortless - relative to hackers - power." It is not what powers the golf swing. It is what makes a swing powerful.

Golfie