I just have to say Speedrace is a fantastic mafia player, and proves it time and time again. My first game with him ever was the office mafia game, late last year where he went under the radar all the way to the end and played very pro town as scum. He's been playing live mafia with us recently, and has a 100% win ratio as scum in like 6 games.
Last night I saw him pull an amazing victory with the odds stacked against him. His scum partner supa was lynched dp1, and he had a scummy character claim that people suspected throughout the whole game. He pulled off perfect results with his lawyer and frame (you could say it was luck, but I think it was proper prediction). He lawyered himself np1 causing doubt from the cop, and gambled a frame on bullish np3 after he was already inno'd np2, successfully predicting the cop would test her result on him again. It was awesome from a mods perspective to watch him kick @ss like that.
I definitely wouldn't under-estimate speed in any game you play with him, he is very deceptive as scum.