i know that gut has more power. this is what i don't like about poly , after 8 hrs you lose power , playability and comfort .
i was thinking to try gut at 56 lbs but how much power has gut over poly?
Yonex VCore 98D / Yonex VCore Xi 98 strung with full poly @ 46 lbs
Babolat Pure Drive Roddick GT strung with full poly @ 52 lbs