I demoed the "new" Head Gravity MP 2 weeks ago and really liked it. Crisp and control. Not overly powerful, but the feel and control was very nice...so I decided to take it for another demo today. As best as I can tell, it was the same strings and in great condition from the TW GA location. HOWEVER...it was awful today with very bad pinging sound and virtually unplayable. I didn't expect it to be as great as it was the other week, but didn't think it would be this bad either. Any thoughts?