Well by the sounds of it, you can guess Russians and Italians have a pretty good run at it.
The interesting one to me was the one where a specific player would lose a first set a lot. If I had time and the inclination, I could probably figure out who that was... with betting numbers, you could probably see it clearly.
However, what if a player is just a slow starter and bettors figure that out? Couldn't people start taking value on the thought that player X loses the first set a lot to players he shouldn't before getting in his groove? Meaning, isn't it possible later on that betting patterns are just mirroring the players pattern? I would love to see the information.