Yo-Yo

My latest craze is yo-yo-ing, or whatever it is called.  It all started when I was at my friend's house playing with a yoyo he had lying around, and I could not stop playing with it!  My dad convinced me to get a legit yo-yo, and it has made all the difference.  It is a Duncan brand.  I've played with it only for a few days and I'm already on my second string, and I think I need to get new breaker-pads for it too.  I'm not sure if it is because I used it so much or if Duncan brand isn't perfected yet or anything, or what.