I finally got a chance to use the RD-7 in a match. I used it for 2 sets. RD-7 was strung with RIP control at 60lbs and the OO1 with SPPP @ 61.5lbs which I used for a third set. The main thing that I found is that the RD-7 is too flexible. It leads to an inconsistent response from the stringbed whereas the OO1 is very predictable basically no matter where you connect with it. OO1 has the same power and direction throughout and the RD-7 doesn't. OO1 has better control and power, predictability and sweetspot, imo. Another thing that I found odd is that the RD-7 has much of its weight at the base of the throat(you can even see where the grip ends, the beam is thick and then suddenly thins as it goes up). This makes it harder to flick the racquet in quick situations but when you have more time to set-up, the racquet can really start moving and almost swing by itself and crush the ball with a really nice combination of spin and pace. And because the weight is where it is, you seem to have no choice but to swing correctly in a nice, even and smooth path. It's funny because I've been playing and found that both my OO1 and Ti-8O both have weak throats, for lack of a better description. And so I was going to try and add a little weight under the grip at the top to see if that would help anything. And now the RD-7 comes into my lap! Anyway, the RD-7 is dead. And I think it should remain that way; there's no going back. R.I.P old legend.