Regarding your post on new vs. old PC 600 frames. I called Tennis spot and they stated that they received 750 newer models with "prestige classic 600 mid" written on them. The gentleman stated that they were 1 year and a half old. Would these frames be the ones you are referring to as the "new batch". They don't simply say "classic mid" on them. Any recommendations on where to find a couple of ones from 5 - 10 years ago? Please piggy-back on your previous post if you have any more info. Thanks.