At 5'6" with a 29" inseam, you obviously have a long torso (like me)...but how long are your arms? Mine are short, so even though my torso is long, my reach is not. I rode a Dolce Comp for over a year and it fit me pretty well. I also have a 28.5"/29" inseam (I'm just over 5'4"), but with my short arms, I still needed a shorter top tube (I had a 44cm). I'm thinking that if you have longer arms, it might feel too cramped for you. In that case, you might be better off with a non-WSD bike in a smaller size.