I recently switched from my Yonex RDS 001 MPs to the Fischer Pro No.1s. I initially was not very happy with the fischers because they felt out of control and unstable. I'm new to racquet customization, so after doing some reading in the forums and in the TW Learning center, i decided i would try adding 10 grams at 9 and 3. The results were amazing on my serve, backhands, and volleys... but it took away speed and spin from my forehand. As I got used to it, my forehand came back just as it was with my old racquets. Any comments or suggestions on my setup would be appreciated. I'm also interested in calculating my swingweight, but don't know how. Here are the stock specs for the racquet: # Weight: 12oz / 340g strung # Balance: 9 points head light the new static weight should be 350g strung, and im unsure of what its balance is.