Take a look at this photo... and before anyone makes a keyboard commando comment... look at the number on his number plate.
Case in point, you need to be comfortable, and develop your own style. Being a little crossed up gives you more ability to work the bars and recover from a moment than hanging off dramatically, although that also has its own benefits. The most important thing is to use a position that allows you to relax your arms, bend the elbow, etc.
Here is one of the other very fast guys from our local series. Drastically different positioning, similar speed.
