Originally Posted by TennisCJC
I think some textured strings actually have very good COEF. Federer uses a textured cross with gut mains and he get tremendous spin.
I have used textured crosses with gut, multi, or syn gut mains and spin is good.
Textured strings create more spin because they grip the ball more. But the same texture that grips the ball more also grips the cross and main strings more which results in less string slipping, less string movement, and less snap back - all of which should create more spin. The rougher the string, the higher the coefficient of friction, and the less the string will slide or snap back and the longer it will take for the string to move or snap back.