Here's a Guru bike fit report - perhaps you already have something like this from the LBS that did the bike fit on your bike. Take the measurements on the steel road bike and see if it's possible to set up the Caad 10 to the same geometry. If you haven't seen a Guru dynamic bike fit, Google it. Both my wife and I had Guru fits done last year - for her it made a world of a difference. Gone was the knee pain, with added power and comfort. But like all things, it's only a tool and unless the bike fitter truly understands the fit process and bike / human body interaction - it's value will be limited. I hope you get it sorted out. For me the bike fit just confirmed that things were pretty close to perfect already.