I got my RDXs today. The swingweight is 20 less than my old racquet, and I was early on all my shots, causing me to hit bizarre very high loopy forehands. I didn't really like the rubber grip, and hopefully to add a little weight too, I switched them out for leather grips. The feel is much better now, but the monsoon rains have come and I will have to wait to hit with them again to compare. Wish I had a scale handy to weigh them now... with the leather grips and a little lead tape added. I played with the SRD Tour 90 a long time ago, and I think Yonex did a good job of updating the frame. The solid feel is there and the frame design definitely reminded me of the "muted thuddy" feel of the SRD. I was able to hit good placement serves, but I wasn't able to serve BOMBS down the T like I used to with the SRD. With the SRD, when practicing serves I could crush balls down the T and the ball would sometimes go through the back fence... so far I have only been able to get the serves to lightly stick in the fence. Maybe I'm just not used to it yet, although I think I just might need a bit more weight to crack them really well. I was very impressed with accuracy on both forehands and backhands... they went right where I wanted them too. Topspin is good, almost too good, as I used to use 18x20 pattern and the 16x18 pattern really bites the ball. I will have to flatten out my shots a little bit more as I get used to it. I had been playing with Prestiges and Ti-70s, which have a totally different feel, so it will take a while for me to get used to the RDX. I strung it with Gosen Micro 16 at 60lbs that gives great control, but I think I might use a softer hybrid next time, because right now it is pretty stiff and pingy. Pretty nice racquet though.. a real blast from the past with no LM ridges or giant holes in the frame!!! Thanks Yonex!