1- if you're playing with a Mod, the surface might be incorrect set and let the CPU thinks he's playing on a fast surface ; else, it was a big coincidence which should not happen often (except if you almost always lose against S&V)
2- I'm not sure what meaning you give to "Counter puncher" ; TE style is "Counter", not "Counter puncher" ; "Counter" is the direct translation of the french term "Contreur" and I never found the equivalent in English ; it basically means that the player counters the attacks of his opponent to use them as its own profit, and works more on his opponent's weak spots than some personal strong points (like a big forehand for the Power Baseliners).
Usually, in tennis, "Counter puncher" means "Defender" => http://en.wikipedia.org/wiki/Tennis_strategy
: "A defensive baseliner, or counter-puncher or retriever, tries to return every ball and relies on the opponent making mistakes". I didn't watch Davydenko play since a long time, but I think he's close of a Counter, while Murray is clearly more a Defender.
"Counter" is even more specific in TE as he's the only player that needs to build his acceleration speeds over his opponent ball speed ; when I created it, I had mainly in mind Hewitt and Arnaud Clément.