quote from Tewks on his Tewks Hitting website:
'It is pretty scary when you think about it. I was a Division I college baseball player who was a Freshman All-American and Conference Player of the Year. I was a professional baseball player. And I didn’t really understand my best swings or swing mechanics in general. I just worked my tail off and relied mostly on hand eye coordination and feel. But I could never repeat those swings. What I know now is my hard work was pretty much preventing those great swings from happening.
And I’ve found this experience to be consistent with most players and coaches I speak with. They truly don’t understand the swing and the different ways the bat can be swung. And they work against themselves because they don’t know what to work on. What a waste.'
I have had similar conversations with a friend of mine. He played briefly for the Expos back in the day and spent a couple of years playing ball in Japan. He knows he could have done more but held himself back to a certain extent.