I've bought my ap 2 712 about 20 months ago and got fitted. At that time I got fitted with the s300 shaft the ball flight was ok.20 months on and a faster swing I found that my ball flight is ballooning and I have to much higher spin rate. I'm thinking about changing my shafts. Has anyone had this problem or any alternaive shafts solutions. I know I should get re fitted but I would like to get an idea first before I spend 45 pounds first and then I may find out that the shafts are correct.