I have played 9 holes with David in 93 and he could play. Not real long of the tee but a good short game. He shot 4 under for 9 holes. I also worked with Jimmy from 91-97 and never played a round with him. He would demo shots in lessons and had a great touch around the green. They all could play at one time. One thing I noticed is there swings did not match their instruction. Interesting?
