Dumb to use Borg as an example.
Borg had taken years off of tennis, and was rusty and not match tough.
Maybe some of you theorists should TRY a wood racket, before entering your opinion on the matter.
I own one HeadMicroGelOS, so I do have a big racket.
Used to play with 115 PrinceTT's and extended Changs.
Of course, played all my good tennis with Smiths, Kramer's, ProStaffs, and Head Pros, and YonexOPSGreens.