I'd be interested if there is a thread available or if anyone has a summary of what happens when you do a hybrid with gut in the mains and poly in the crosses and then reverse the setup so poly is in the mains and gut is in the crosses. This presumes everything else, including tension, racket, etc. remains the same. How does playability change? How does power, spin production and control change, etc.? Any perspectives of reversing hybrid configurations would be helpful to me. Thanks for any replies.