OK, from the limited help I got from my previous thread, searching around a while, and my own experience, I came up with a ranking of serving capability of some players rackets: 1 Pro Staff 85 2 K 6-1 95 3 K 6-1 Tour (90) 4 Volkl C10 Pro 5 Techni Tfight 335 6 Yonex RQis Tour 1 (weighted) 7 …(spot held for my personal rackets for comparison) 8 Head Pro Tour 280 9 Head MicroGel Prestige 98 10 Head MicroGel Prestige Pro 11 Fischer M Pro #1 98 12 Fischer M Comp 95 13 Yonex RDS 001 Mid 14 Yonex RDS 002 Tour 15 Yonex RQis Tour 1 16 Dunlop AeroGel 200 17 Yonex RDX-500 Mid Then I compared these rackets power rating using the method given in the 2005 racket selection map. ( http://www.racquetsportsindustry.com/issues/200503/200503racquet_map.html ) I adjusted the advertised head sizes versus what is believed to be the actual inside area (ie. Head 98 = 95, POG 93 = 90, etc.) to make them consistent and adjusted the racket length some to make up for the higher sweetspot of midsize rackets. This gave me these results: Wilson K6-1 95 2229 Yonex RDS 002 Tour 2102 Prince Response Ti 2081 Wilson K6-1 Tour 90 2049 Prince Graphite Mid 20th (weighted) 2018 Volkl C10 Pro 1994 Yonex RD Ti-70 (88) 1989 Yonex RQis Tour 1 (weighted) 1970 Prince Graphite Mid 1970 Kennex Black Ace 1964 Technifibre Tfight 335 1956 Dunlop AeroGel 200 1918 Head MicroGel Prestige 98 1915 Yonex RDS 001 Mid 1911 Wilson Pro Staff (85) 1900 Head MicroGel Prestige Pro 1891 Prince Tour Diablo Mid 1890 Yonex RQis Tour 1 1883 Fischer M Comp 95 1872 Fischer M Pro #1 98 1802 Head Pro Tour 280 1802 Yonex RDX-500 Mid 1741 Yonexes appear to be rated too high, as well as the POG unweighted and Dunlop. The Pro Staff 85 and the Head Pro Tour 280 are calculated too low based on my personal experience and the M Pro #1 98 seems to be too low based on other’s comments and the TW racket review since no one seems to make a big deal about how weak it is on serve, which they do on the also low scoring RDX-500. Likely two things are going on, the flexibility of the head of the racket is not taken into account in RDC measurements; the more flexible heads of the POG and Yonexes are not penalized for this; and the head size of Yonexes includes the widened corners, so the length of the strings is shorter for the given head area. I don’t know how to adjust for head flexibility, but I changed head size to center main string length. Also, the racket selection power rankings use racket length (to give more power to extra-long rackets based on the distance from the hand). I changed this to distance to the center of the stringbed which is further for a midsize racket than an oversize. The results are here: Wilson K6-1 95 227 Wilson K6-1 Tour 90 217 Prince Graphite Mid 20th (weighted) 213 Kennex Black Ace 208 Yonex RDS 002 Tour 208 Prince Response Ti 208 Prince Graphite Mid 208 Wilson Pro Staff (85) 204 Yonex RD Ti-70 (88 ) 201 Technifibre Tfight 335 199 Volkl C10 Pro 199 Prince Tour Diablo Mid 197 Yonex RQis Tour 1 (weighted) 197 Yonex RDS 001 Mid 196 Dunlop AeroGel 200 195 Head MicroGel Prestige 98 195 Head MicroGel Prestige Pro 193 Fischer M Comp 95 191 Yonex RQis Tour 1 188 Head Pro Tour 280 184 Yonex RDX-500 Mid 180 Fischer M Pro #1 98 180 The Yonexes are more in-line, though still possibly a bit high and the PS 85 moves up to a more reasonable number, though I’m still not sure I’ve got these adjusted right. The primary outliers are the RDS002Tour and Aerogel 200 for being too high, and the Pro Tour 280 and M Pro #1 for being too low. Any feedback would be appreciated, especially your experiences serving with these rackets and how it compares to the numbers.