After 3 years of stringing, this is the first time I have encountered this. I recently strung a Wilson K Factor with BG85 @ 24lbs. The customer received it and played for one day and the string broke. Now of course it is the stringer's fault, but really I want some opinions from you guys, was I my fault or was it too obiviously it was from a miss hit. At the end, I re-strung his racquet for free as I don't want to loose any of my reputationin my club.