As I understand it on-one sizing is a bit weird. If you usually have a 18 or 17″ frame you are meant to go down to a 16. And if you are usually ridding a 16 you are meant to go to a 14″ frame.
ps: this isn’t really true. I just think that people should ride a smaller frame than they might otherwise. I am 6’1″. I ride an 18in frame. Yet I know people who are 5’9″ and are convinced they also need an 18in frame. They don’t. They need a 16in frame.
i’m 6’2″ and have an 18in scandal which feels perfect, but seatpost length is a slight issue for me, too. got a thomson 410mm on it at the mo, but the frame/post are close to their limits for height.