So it wasn't the racquet, it was my strokes ... I had to improve.
Nice conclusion. Using a racquet that fits style of play does make a big difference, however. I have a few classic Prestige (e.g., TXP, Prestige 600, Prestige Classic 600, Prestige Tour 600). They provide nice feel and control. I was playing well with them but then experienced problems with framing the ball because of clumsy footwork or age (bummer). I found that larger size racquets, such as Babolat Pure Storm Team and Wilson Ultra FPK 95 allow me to return hard serves and fast balls more effectively than do with mid-size racquets. I guess a larger sweet spot does help. The articles linked are very interesting read. Thanks.