Wow, a 70 gram badminton racquet!!! Check it out, I don't know if I could play with something that light. AF
I just strung one (SL-70) for my friend couple days ago. He bot it a year ago in uk. Feel very light and well made racket. Too bad factory string is so so (worst than bg65). Also too bad i dont have much choice of rackets where i live. I like to try/buy other rackets other than yonex.
Its fun sometimes trying other rackets. I've used rackets made by Winex, Fleet, Yonex and Pro Kennex and some others........