I have 2 AT900P, I got both last year. One of the, I haven't used even once. (still with plastic wrap) With the ARC10 arriving, I doubt I will be using it unless the AT900P I am using now breaks. Should I just cut the string on that racquet and store it? Or leaving the string on is ok?
If you plan to put it away for at least several months or even longer, I prefer to cut the string to reduce any possible risk on the racket frame, especially if it's strung under high tension, or your storage place has extreme temperature (hot or cold). After several months, the string will be very loose, and you need to re-string in order to use it anyway. However, if you plan to use it soon, or decide to sell it, that's another story.