Originally Posted by canny
Was gonna try this. But since Im ordering the new extreme from tennis warehouse I decided to get it strung 60 pounds klip 18g in the mains and 58 pounds of yonex poly spin in the crosses. Im pretty excited. In theory should produce a boat load of spin especially with the extreme. But I also know theoretically the durability should be terrible. But we'll see.
Generally, I think the consensus would be not to string your poly crosses above 48 lbs. Over that number, the poly can become overstretched and actually lose control and spin. There are a number of articles on this and is supported by many in the string industry (G&G for one).
Beyond this, this set-up sounds like murder on your arm.