Originally Posted by Banzai

Measured how? By what method were you fitted? Standard LBS "that looks about right" fit? Most importantly, is the top tube/reach correct? (Far more important than the seat tube). If you used an online calculator (or the shop used an equivalent) what method did the calculator assume the manufacturer was using to report frame size?

I had to learn about fit through lots of research, and a lot more riding. Over time, I figured out the dimensions that I needed, since 9 out of 10 LBSs were precisely ZERO help, nor did they seem to have any expertise beyond "can you stand over it comfortably?" and "how does that feel?". I eventually built a commuter bike based off of this research and experience.

Later I discovered the Competitive Cyclist website, and plugged in my numbers. I was pleased when my results were nearly spot on with the bike I built.

My new Six13 mirrors the fit of my other two bikes where it needs to, and deviates where it should. It also is nearly spot on with Competitive Cyclist's "Eddy fit". The 50cm frame would have been short on the reach though for their "Competitive fit", without upsizing the stem quite a bit.

Trust me, I could ride all day on this bike. First test ride and it felt like a comfortable and familiar bike...which I think means I did a pretty good job of achieving the geometry I need, and that I've grown accustomed to.