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Power, Durability and Control (through spin)
It's an excellent string. It keeps its tension very well though will lose some of its original in the first week, it will then settle to a slightly lower for much longer. Great string for powerful and top spinning players, it's an excellent compromise price/durability/ power. Provides as much power as Alu Power (smooth) but with more spin effect, yet less than Alu Power Spin which has a bit less control in my view. Lasts longer than most other strings out there. Even if it might be more expensive than other strings, it should certainly pay off in the long run. Many thanks