I haven an alpha string pal. I string a racquet in about 45 minutes, a bit slow but I'm still just a beginner at stringing. I've probably strung about 50 racquets so far. I take my time and am unconcerned with how quickly it gets done. I just put a movie on and grab a beer. It's relaxing, like zen, you know?
I string at least one racquet per week. I don't like old strings on my frames, so i cut strings out around the 10 hour mark.