Some of you guys have seen it all, so I'd curious on theories of what happened here. Background: The racquet is a Head FXP Prestige Team. It was strung on 23/02/2012 (by me) with Tecnifibre Syn Gut 1.25 at 62lbs. Recommended tension on the frame is 57 +- 5. The string came from individual sets rather than a reel. I also strung its twin at the same time. The owner tells me that he rotates racquets, and that this one has only been played with a couple of times. This seems reasonable - he's a weekend warrior, and it has rained buckets in the past month. He claims he just pulled the racquet from the bag yesterday, and it looked like this: (if you're interested in a higher quality pic, look here.) It has been very wet recently, but the temperatures haven't been extreme either high or low. Any ideas welcome. I do have my own theory, but it's a bit sketchy so if there's anything more common that would cause this (just in case you missed it - there are two broken strings here, on opposite sides of the racquet).