Published at Thursday, March 29th, 2018 - 00:15:29 AM. Tennis. By Iris Theresa.
LOCK BOOSTER SYSTEM: Crush the ball. An enhanced grommet design that promotes string contact for efficient energy transfer and ball crushing power. Three ribs inserted in-between the grommet decrease string slippage and reduce energy loss when crushing the ball.
Installing Black Code 4S was actually a lot less trouble than expected. Typically geometric or textured polys can be a bear for the fingers but 4S wasn't terribly onerous even though the edges were definitely noticeable. Coil memory seemed typical for a polyester but with a little care tangles and kinks were easily avoided. As with most geometric or textured polys installing crosses comes with some risk of damage due to the sharp edges. I didn't have any issues but I'd still encourage other stringers to take their time installing crosses—especially if they're blending Black Code 4S with another softer string.
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