MAN IT HAS BEEN AWSOME IN MICHIGAN PLAYED GOLF SLIKE 15 TIMES ALREADY. AND HAVENT REALLY MISSED A BEAT. THE ONLY PROBLEM IS I HAVE BEEN LIPPING OUT SO MANY PUTTS... BUT MY ? IS WHATS THE DIFFRENCE BESIDES THE PRICE FROM THE 2011 PROV1X TO THE 2012 IF ANY,, THANKS