Hi everyone. Just to let you know that I went back to the Specialized Concept store again today and I've decided to go for the Diverge Comp Carbon. I sat on a 56 size frame and it felt perfect and really comfortable, I'd sat on a 54 size on the last visit and that didn't feel anywhere near as comfortable as the 56. I can't wait to get it, so I'd just like to thank you all for your help!