I dunno some of you ride such small frames! I'm 6' 2.5'' and I ride a 62cm Mark V. The problem with Mark V is that the top tube is longer in ratio to the seat tube. So the top tube is 59cm and the S/T is 56cm c-c. I would have preferred to have a 59cm or 60cm S/T to bring the handlebars closer in level to the seat.
Correct me if I'm wrong, but going for a smaller frame (I'm thinking drastically smaller like from 60cm to 57cm) could also result in a greater seat to handlebar drop depending on the length of the S/T. I know most people on these boards say go for TT to get the right fit, but then you can end up like me on a frame where my saddle to bar drop is much too much (I also have long legs). I've recently shortened the stem, and inverted it so it's angled to get it more comfortable.
I guess the point of all this was just to say that keep saddle to bar drop in mind as well when considering fit. I know that saddle to bar drop is perhaps more open to adjustment through varying the angle of your stem, but no one wants a ridiculous 40-degree stem on their bike if they can help it.