i just bought a Yonex NS100. and put yonex bg 85 stings(or 65 cant really see the number and i forgot what i bought. alli remember is the box says its hard and its my 33.xx i think) is it good for a newbie like me? I play every saturday for 2 hours and some times sundays for two saturday has a coach im 175cm tall and 85kg. thanks