Hi, I am a 34 year old recreational player, who started playing tennis 1.5 years back. I played with some USTA Coaches and real good players for sometime and it got me hooked. within a few months of starting a coach advised me to get a good racquet and suggested the Babolat Aero Pro Drive. (I was playing with a walmart wilson ) at that time I like the Babolat Pure Storm, but the USTA coach suggested that it would be tough for a beginner. so got a brand new APD ! I loved the Babolat APD for a long time, Next I wanted a second racquet when the first one went to stringing, so got a used racquet from a local sport junkyard shop. I always wanted a player's racquet, and I saw a nice Dunlop 200G (old model). Next, I also like the APD's aero style, but thought it to be a little bulky so went for something in between, the Aero Storm (got a used one for $70) Finally, I always wanted to keep a souvenir of Federer's Ksix-One90, so got a used one. Haven't played much with this yet. so now I have 1) Babolat APD 2) Babolat Aero Storm 3) Dunlop 200g 4) Wison Ksix One 90 What I am confused about now is, a) is this good to play with different racquets ? b) What is the best option for me to re-arange my bag ? c) I paid a lot for the new APD ($170) and hate to sell for less d) I don't want to get rid of the KSix One 90 Any suggestions ?