Instead of making multiple threads I decided to put most of my questions into one. First off, how does one know when to change racquets? I currently have a Hybrid Hornet and I have fairly consistent groundstrokes so I was wondering whether it was time to upgrade or continue refining my game. Second, can anyone help me find some racquets to demo? I was looking for a racquet that is more head light and heavier than my Hornet. I was thinking of the AeroPro Drive Cortex, the O3 White, and for the heck of it the K90/95. Any help is much appreciated. Thank you.