Been using a Prince Rebel 95 for a while now and have tried both the string hole inserts and O ports although each time I switched I changed strings and thus I would not like to say conclusively which I prefer... I tend to opt with the O ports using a thin gauge full poly such as Big Banger Ace at 57 lbs ... my next string will be Technifibre BlackCode 18 .. What I'm most interested in is folks thoughts on "hybriding" the string holes with O ports.. I notice Prince have released "hybrid" sticks with the O ports at both 12&6 o'clock and 9&3 respectively. Has anyone got on any experiences or thoughts on the differences these configurations make ...? Especially if you yourself have combined O ports with string hole inserts on a Ex 03 racket yourself :?