Multiple flex shaft method and system for golf clubs

A method comprising:

• categorizing a plurality of golf club shafts into a plurality of golf club shaft sets based on a flexibility of the plurality of golf club shafts;
• determining a golfing level of an individual to whom a proposed golf club shaft set will be matched;
• and
• selecting the proposed golf club shaft set from the plurality of golf club shaft sets of different golfing levels to fit the golfing level of the individual;
• wherein:
• categorizing the plurality of golf club shafts comprises:
• measuring the flexibility of the golf club shafts using a flexibility measuring mechanism configured to apply a predetermined force to the plurality of golf club shafts, wherein the plurality of golf club shafts are decoupled from any golf club heads when the flexibility is measured;
• the plurality of golf club shaft sets comprises:
• a first golf club shaft set with a first shaft flexibility range and configured for a high golfing level;
• a second golf club shaft set with a second shaft flexibility range and configured for a medium golfing level;
• and
• a third golf club shaft set with a third shaft flexibility range and configured for a low golfing level;
• the first shaft flexibility range is greater than the second shaft flexibility range;
• the second shaft flexibility range is greater than the third shaft flexibility range;
• the proposed golf club shaft set comprises proposed golf club shafts and a proposed shaft flexibility variance;
• and
• the proposed shaft flexibility variance of the proposed golf club shaft set is irregular among the proposed golf club shafts within the proposed golf club shaft set.