With the Pro Staff RF97 Autograph v13 Wilson updates Roger Federer's  racquet with a new cosmetic but keeps everything else the same, including the magical target specs and sublime feel that Roger Federer helped engineer with the original red/black version. Like the previous generation, this update features the same silky texture and elegant simplicity. It also features a small silhouette of Federer, laser engraved graphics and a reproduction of Federer's signature.  As a member of the classic Pro Staff family, this racquet features Wilson's timeless Pro Staff formula, including a braided graphite/aramid layup, headlight balance, thin beam and Perimeter Weighting System. Featuring a slightly wider, more angular beam than the traditional box beam of Original 6.0s, this racquet blends surgical control and feel with a dash of modern power. From the baseline, the RF97's 12.6 ounce weight and beefy 330+ swingweight make it perfect for the advanced ball striker who wants stability. In addition to surgical control and mindless touch, player's who can leverage the mass will find heavy pace and plenty of put-away power. At net this stick does not get pushed around. Simple blocks result in penetrating replies, and there is enough touch and pop to hit every shot in the book. You'll also find the required power, spin and precision on serve to rack up free points. Ultimately, there is a reason why Wilson hasn't changed Federer's RF97 - you can't improve upon perfection.