Question about applying road fit results to track frames:

Normally with a track fit compared to a road fit, you'd want a seat tube that was a centimeter or two shorter due to the bottom bracket differences. However, what about the top tube? That's a more important length to consider, but unfortunately I don't know how to apply the handy applet that was linked above to a track frame. Should I subtract something off the top tube length that was provided, or go with it?

Thanks,

- eyefloater