Is there a real significant difference bw these two racquets? AeroPro Drive: Head Size: 100 sq. in. / 645.16 sq. cm. Length: 27in / 68.58cm Strung Weight: 11.3oz / 320.35g Balance: 4 pts HL Swingweight: 316 Stiffness: 69 Aero Storm GT Head Size: 98 sq. in. / 632.26 sq. cm. Length: 27 inches / 68.58 cm Strung Weight: 11.4oz / 323.18g Balance: 3 pts HL Swingweight: 334 Stiffness: 67 Weight is about the same, stifness also, balance... Did anyone already tried the two? Do they target different type of players? Thanks.