Originally Posted by TennisCJC
Sampras has been playing poly lately. Courier use a syn gut main/poly cross setup. I think Agassi played poly in later years on tour and still is playing poly as senior.
McEnroe needs the feel and power from gut but he could probably use a gut main/poly cross hybrid at low tensions.
Doubt JMac can use poly hybrid. He'll lose too much power which he needs desperately from his funky strokes. even in very low tension poly just kills most of the power.