Originally Posted by Ramon
It's probably too loose. Some places string racquets so quickly, if you ask for 60 pounds you'll get 45. You can check the tension with RacquetTune if you have an iPhone. The default string factor setting works fine with PPA. I'll bet it's in low 40's or lower.
Definitely check tension. I just reread the thread and saw it was moving after 1 hour. PPA is pretty good about not moving around much until it gets close to death.