Originally Posted by UCSF2012
Traditional graphite loses flex quickly and cave in in due time.
This is a ridiculous statment, sorry. The graphite is the "strongest" component in any racquet composite, after the boron.
Even if there was some change in properties, it wouldnt be the loss but increase in flex.
More different fibre materials you put into a composite, less you can custom tailor the matrix (epoxy) for maximum bond, resulting in decreased longevity of the product...