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When the CB center is aimed to hit the OB edge.. the OB contact point is exactly between your OB edge and OB center.
When the CB contacts the OB, the OB travels in a line that extends from the OB contact point through the OB center axis.
At times we'll think "Is it, or isn't it 30 degrees?". Aim at the OB edge. The OB contact point will tell if it's going 30 degrees.
The line from OB contact point, through OB center, will align to the pocket. If the line points right or left it's not 30 degrees.
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When the CB center is aimed to hit the OB edge.. the OB contact point is exactly between your OB edge and OB center.
When the CB contacts the OB, the OB travels in a line that extends from the OB contact point through the OB center axis.
At times we'll think "Is it, or isn't it 30 degrees?". Aim at the OB edge. The OB contact point will tell if it's going 30 degrees.
The line from OB contact point, through OB center, will align to the pocket. If the line points right or left it's not 30 degrees.
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