I didn't see this question until I posted the previous note.

My Grandis is 56cm Center-to-Top, with 55cm C-C top tube. it is best described as a F1 car with only 2 wheels, hard riding, demanding that I ride faster, with lightning quick response. A criterium bike not for the faint of heart! But great fun otherwise. My Masi is similarly small but always does what I am thinking without me having to tell it what to do.