I got my frame and had it strung back in July of 2012. I since then, I average about 2 hour sessions, 2 times a week. The racket doesn't feel the same as it did back in July, however it doesn't feel bad either. Are the any signs I should look out for that I need to change my strings? Details: Strings are BG80P strung at 23lbs.
Thanks. After close inspection, I start to noticed that the 'sweet spot' part of the string bed feels different from the rest. It's kind of rough, so I think that means it worn out. This is, of course, compared to the out edge of the strings which is still smooth. Would changing my strings make much of a difference at this point?