I had a Retul fitting after I bought my first road bike almost four years ago. It was the best money I have spent on anything cycling related, except the bike of course. A few weeks after getting the fitting, I did an MS 150 and had zero issues related to fit. I bought my Colnago two years ago and they set it up according to my settings in the computer (from my original fitting) and when I picked it up, the fit was perfect. I put 9,000 pain free miles on my bike last year because the fit was dead on. I would definitely recommend a fitting that uses a 3D real-time capture system (Retul, GURU).