So Fats, I can relate with my Metallica story above. Concentration and focus is something I have to practice. I get distracted mostly by 'things people say' that I hear on the side, therefore, loud music that puts me in the zone can help me with that. One time in league play I had a break and run and I was so focused that when I made the 8 ball I didn't even realize I had a break and run until one of the guys watching said 'that's a break and run'!