Very interesting. I converted it a dozen times as teenager. Once, it happened twice in a single game. A big caveat is that, I was playing ~50 games a week from

Very interesting. I converted it a dozen times as teenager. Once, it happened twice in a single game. A big caveat is that, I was playing ~50 games a week from age 13-15 when there was a promotion that let members of two leagues play unlimited free practice games. I used a 16lb ball, threw just over 20mph with as little hook as possible and tried to hit the 10 pin in such a way as to send it near the corner of the pit. At least on those lanes back then, that lead to a high percentage (maybe 15%) bouncing out of the pit. Occassionally that bounce would get the 7. Even in the 90s, 7-10s were significantly harder in professional play due to their using heavier pins than you'd see in normal league or practice games. The new pin screens shown in this video make it look like the 7-10 probably is now even another five times harder to convert than it already was! I totally agree with the last part, too. In all those free practice games I bowled as a teenager, I never converted a single 4-6, "big four" or a "Greek church".