Ideal for players looking for a maximum of spin potential and power.
Heptagonal, twisted co-poly string for highest level of spin potential.
#1 string in power and tension stability during play (Playtest of spin strings 2014 by German tennisMAGAZIN). #2 string in spin potential. Overall rating: GOOD.
Achieves an extra ordinary satisfaction score of 94% for 1.20mm/1.25mm and 1.30 mm diameter among players of the leading tennis string community (www.stringforum.net; 59 ratings; status October 2016). My Tennis blog’s string test reinforces the excellent performance of the string. It achieves rank # 2 ahead of well known competitive brands.
GAMMA iO offers exceptional power, access to spin and pinpoint control. Its unique co-poly material takes ball pocketing to a new level, providing ideal levels of response and comfort. GAMMA iO is best suited for players with penetrating and punishing ground strokes from both sides.
The Topspin Cyber Flash is a tennis string made of the most modern, optimized PETP. Tennis players get a precise feedback from the SoP system for the individual strokes, which makes the string pleasant to play. With fast strokes, the optimal energy transfer of the tennis string pays off, which not only gives you optimal control but also very good ball acceleration.
The Signum Pro Thunderstorm is a axially twisted, decagonal string that offers excellent spin and control. This durable string has minimal tension loss while offering a comfortable, control oriented feel. This thinner gauge also offers a great playability.