I read this book, here is a story of someone trying to do it. I think the quality of the 10,000 hours is pretty important and at the best levels of any sport, the differences in skills are small and the mental game is what wins.
I shot at Maywood Sportsman's Club Easter Sunday, St. Charles has a reciporcal membership agreement. I ran into some shooters that I haven't seen in awhile and watched the games being shot before heading home for Easter dinner.