I have a question regarding injuring your middle bowling finger.   Have you ever tried to bowl with just your ring finger in the ball without your middle finger and had success?  

I did this, this morning for the first time and bowled 224 missing two 10 pins (one in the tenth)


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High game 300
High series 804
High triplicate 774
High average 221
best game. when I was 6 I bowled a 158