The Shark has an extraordinarily solid feel, which is a result of the merging of old and new technologies. The old: the Sweet Spot Expansion System, also found in the ThunderBolt. These bigger grommet holes at the 3, 6, 9, and 12 o’clock positions allow the strings to move freely and produce a forgiving feel. The new: a thermoplastic rubber pallet inside the handle that stops vibrations from reaching your arm, and braided carbon fibers in the throat for a softer feel. The mid-plus is heavy yet maneuverable, with a terrific combination of power and control for long-swinging advanced players. The Shark’s only weakness was that it didn’t produce enough spin, players said. Almost an ounce lighter, the oversize received its best reviews from intermediates, particularly doubles specialists, who liked the power it delivered on the staple shots: serves, returns, and volleys.