I got a new, strung Head FXP Radical OS from Tennis Warehouse. It weighed 10.85oz but the specs on the website say 11.3oz strung. I contacted TW and they said racquet spec tolerances are approx. 10 grams. Here the difference is 0.45oz = 12.76 grams. I have weighed other racquets from Wilson and Dunlop before and they have been accurate spec-wise. Anyone encountered this problem before from Head racquets? Is Head's quality control worse than other brands?