@bones75 @billchao Long time reader of TST, but first time posting. I had to when I saw this topic. ~12 years ago when I was about 8 years old I actually asked David Duval this question. My dad is in athletics industry and I was lucky to have dinner with David, his caddy and a few other people after a small charity type tournament (this is when he was really struggling). Funny thing is the very first thing David asked was how long their driver shafts were, then him and his caddy did some math and then David said "I don't think I could compete, but I'm sure many on the tour could... not sure if they could win the championship though." David further went on to say that he can't really swing any harder then he already does on the tour, that there's not much more he can put into to it than he does already, even if he had multiple tries. Me and my dad talked about it further (long drives were a thing for me when I was 8) and we surmised that if he tried it for a few weeks he could probably develop a "long drive contest" swing, but as already stated no one at the table actually thought for a second that a PGA player would try it.