Thought that I'd throw this out there - how did you choose the size of bike you ride, and how did you set it up to fit you? Anyone out there gone all-out and bought a custom frame? I'm interested to see how MTB'ers size up their rides. Give us your stories; the good, the bad, the ugly.
I used to think that a long top tube [24"], long stem, and low bar made me faster - in the early days, people used to say that the handlebar should be 2-4 inches below saddle height, which nowadays seems absolutely ridiculous. Now I've got one of the highest bars and shortest stems around, with a 22.5" top tube and find this works perfectly for me. Much more stable.