The string on my racket typically lasts 5 to 6 hours of play. I'm about a 3/3.5 player with a SW forehand and always use 16 gauge strings. When I ask the stringing guy at the local shop about breaking string too often he said I probably miss hit a lot, as many folks here say too. My understanding of miss hit is if the hit is outside of the sweetspot. HOwever, most of the time if not all, the string on my racket breaks at the 5, 6, or 7 main, a couple of inches down from the center of the racket. On a Wilson 95 headsize, this should be right in the sweetspot. This brings up a question, does the string break at the point of the ball impact most of the time? I'm just wondering if I indeed hit towards the edge of the frame but the pull on the entire string bed breaks the string at the weakest point. Otherwise, things just don't add up.