ummm... i'm using Finnex Infinity 9000, until my friend broke it. waiting for the replacement. i have ns9900 n at 900p... these 2 are already in cold storage when this came along. ( 2 of ea = 2 ns n 2 at ) i prefer Finnex Infinity and the other one power smash compare to YY..
mine (8DX) is around 300mm....or somewhere between 295 to 300 mm stiff but not stiffer compare to NS9900, equal to at900T i think and at900T is head heavier, mine is 305mm...and i have 3 at900T all have same BP.
ns 9000 is a pretty good racket maybe if you want a faster racket try z slash it manuvers really fast but when i first tried it my timing with it was terrible but after you get used to it, it packs quite a punch as it allows a fast swing also haven't tried a bravesword but i've heard its good
hmmm... my take on this? why don't you just keep improving on your skills? that way, you can even use any type of racket, imho
I think the Carton Vapour Trail Tour is easily as fast as a NS9900, but because of the longer shaft and smaller head, packs a bigger punch.