Finally replacing two shafts after 4 years of defensive use. Three years of high school/travel team, one year college. The only reason for replacement is one has lost it''s rubberized finish (snow belt region w/ gripper gloves) and the other has a 1' hairline crack that happened the last 3-4 games of this year. (Note: it was just a crack, not a failure and finish the season in play.) Incredibly rugged shaft w/ little temperature transfer in cold climates.