bought a racquet from some guy i know at the club. reason im wondering is that sometimes, the string seems to shift after long rallies. and for some strange reason, i got some birdies stuck in between the strings. im guessing the birdie must really suck. they are wilson brand. 4795356 270242US edit: armortec 300 btw
If the cork got stuck between strings, means the string is very loose. Time to re-string the racket for sure. Simply un-playable.