0.70mm and only available in the Japanese packaging. Plays like BG-65 with better durability at higher tension >30lbs. Not cheap, quite expensive >$10.00
So there's really no difference other than durability, which I would mostly say that BG-65 already has. Is it possibly any better than BG-80?
BG80 @30lbs can snap after few smashes, BG65 power @30lbs will last longer then a few smashes. I would say that is better.
Haha, well maybe if you strung that high. I would have to say it'd be more of a strain on the racket than the string. That's right, you're associated with Mr. Dan.