What is the general method you guys use to determine what size stem to use? I'm going to order a thomson to match my seatpost, and I want to atleast be in the ballpark. With my saddle currently set up to be comfortable, when I'm standing I feelt like I'm over the front wheel. I can tell I need a longer stem, and just want to see how much longer. I have heard things for road bikes like," When you are in the drops, your bars should eclipse the hub." Any general rule like that for riding on the track?

Gratzi