Hello ! I just measure swingweight of a test Head Extreme Pro and it seems to be really far from specs. See for yourself : Unstrung: Weight : 312g Eq : 31cm Strung with MSV Hex 1.10: Weight : 325g Eq : 31.9cm SwingWeight : 314kg.cm² All previous measurements I've done were within +-3kg.cm² range from the USRSA database, and this one is far away. USRSA gives 335 kg.cm² TW description page gives 332 kg.cm² TWU gives 332 kg.cm² too 20kg.cm² gives a big difference in terms of swingweight, and 314kg.cm² is close to my ideal swingweight and this test racquet suits me well. Do you think another Extreme Pro would have a much higher swingweight ? How is your Extreme Pro ?