I am currently demoing the Biomimetic 300 Tour. I like the racket but the sweetspot seems a little small. Also hitting the ball on the upper part of the frame produces a dead feel. I play an aggressive all court game, a one-handed backhand mediu pace and medium spin. Like to flatten out a short ball with my forehand in singles. Also play quite a bit of doubles and enjoy serve and volley. I wanted to keep the racket well under 12 oz. I was wondering where and how much lead would be recommended to perhaps increase the size and/or move the sweetspot while keeping the headlight balance. Thank you in advance.