| 摘要 |
A golf club is modified by substantially hollowing out the entire portion or a predominant portion of the club head before purchase. The placement of the position of the weight can now be placed to increase or decrease clockwise spin, counter-clockwise spin, and backspin of the golf ball propelled by the club. If the purchaser's golf swing changes, the golfer can get fitted for a new sole plate insert to adjust the weight to achieve a more desirable ball spin for an improved flight of the golf ball.
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