I have been using an aeropro drive and like the spin potential and large sweet spot, the only thing is the racquet may be to light for me. I hit with a friends heavier racquet and enjoyed the solid and stable feel when plowing threw the ball. how do i know if i need a heavier racquet? How do i know how heavy? and what are the advantages/disadvantages should i be using the most weight i can handle that doesn't slow down my strokes? btw i am a varsity high school player that will begin playing college tennis this summer. I use a western grip and am mostly a baseliner...but will volley when needed.