Hi, I posted it originally on racket forum but no answer as yet, so I hope that TW staff could answer it. It might sound a daft question, but after testing dozen rackets recently, I really wonder if there is an agreed standard on measuring racket head size? When testing Prince Rebel, it played bigger then other 95" head size rackets I used before. I thought it was down to a ported design, but it might be something else. If you compare for example my old Prince Diablo Tour, Prince Rebel EOX, Head Prestige Pro YouTek and Head Radical Pro Microgel, you can see that Diablo is definitely smallest i.e. looking like 93" head and the HRPMicrogel largest i.e. looking like 100" head. They are both either significantly smaller (Diablo) or larger (Radical) then the other 2 rackets. However if you compare Rebel with Prestige Pro, the diffrence in size is very small. It is either because Rebel is really about 97.5" or Prestige Pro 95.5? They can not be both correct about their stated head sizes. The only logical explanation would be if different manufacturers used different measurements i.e. internal or external head size or something in between. confused "andrewski"