I recently sold my vintage De Rosa. It was a 62 c-t-c and 60 top tube. It was a bit big for me. I am now looking at a bike that's 57 c-t-c and 55 top tube. I also did my measurements online at competitive cyclist and the race fit suggests a 59 c-t-c seat tube and a 57/58 top tube. Is the bike that I'm looking at going to be too small? It felt fine when i stood over it, a little tucked in, but not bad at all. I learned my lesson about buying a frame that's too big, but it seems like there no harm in going a little smaller. Am I right to assume this? Would you guys suggest abstaining from buying the frame? Just need some advice. Its also a great deal for a chorus supercorsa.... Thanks!