Just bought 3 97 310g, these are the final strung specs:
All strung with Babolat Synthetic gut.
It wasn't hard to match all three, but I have had a better experience with the 89 Tours, with just a 2g and 4 SW points difference among the 3( 2 had the exact same specs ).
3 Head IG Radical MP - Hyperion 1.18 x MSV Focus Hex 1.10 @ 45 / 12g on handle
Gamma X6-FC // Member of 18x20 club