...But I have.
The only problem is that my entire arsenal is 16 pounders, and to be honest I really like a few of them, and don't have the money to replace with them with 15 pounders and a few other balls to complement them.
The only reason I consider this move to a lighter ball is Yes I do want to do tournaments, Yes I want to be competetive, etc.
There's a guy in our league, we'll call him "Tommy". Tommy is 24 (I'm 22), and he throws one heck of a big ball. He's as pure a cranker as a cranker can get. I've bowled with him since I was 13. Tommy has averaged 220 since he was 15. I have moved up from averaging 160 at age 13 to ~210 now. I said all that to say this:
SEVERAL people in the league (that average 2-teens) have approached me and said "you throw every bit as good a ball as Tommy. He's just more consistent". And looking at it now, I believe them. Tommy is 5'11" and about 180, and fairly well built. I'm 5'9" and about 155. I'm putting a lot of body and body weight into every shot that I throw, and I think because of that I'm inconsistent. If I didn't have to rely on the whole chain so much as I did one specific part, or lighten the load by going to a lighter ball, think I can be more consistent?
I keep saying I can average 220, and I do for about half the season. That's why I'm not a 220 average bowler, I can't keep doing that...
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Carry the 8. be a good lefty.