I've found this forum to be immensely useful as I research my next racquet purchase. One thing I just realized was that many of the posts/reviews tend to use common terms when describing racquet characteristics. I know the definitions of these words but I'm not sure I fully understand what the authors mean when they describe a racquet using these words. Can someone help clarify? Hopefully this will be helpful to others as well. Thanks. * crisp - ? * muted - related to sound? vibration? or something else? * solid - in contrast to hollow? or in contrast to flexible?