Nelson frames

I'm usually happy on a 56cm road frame. I have quite long legs to arm ratio compared to most people (more like a womans, so I was told :-\ and the 57cm is perfect for me. More comfortable than Ive ever been on a bike. (I'm just under 6ft)
There is a jump, I think, in their sizes, 54 then 57, which is a bit odd.

I´m just about the same size and thinking of buying a 57 myself. How´s the toe-overlap? Running 165 cranks. Cheers