It was the Retul fitting that finally helped me by identifying a difference in lateral movement on my right leg that was corrected with a few shims under the cleat. The interesting thing about a bicycle is that it is built to perform symmetrically. However, few human bodies are perfectly symmetrical. There are small modifications that can make a difference. And, I agree with AZTallRider that the fitting needs to be dynamic. Otherwise, it is difficult to uncover some of the issues one might have. Additionally, it was discovered that my left shoulder tends to drop slightly more than the right. (This is actually more noticeable when looking at photos of me standing.) My Retul fitter didn’t rely exclusively on the “Retul fitting model”. He also employed his knowledge of working with pro teams for year. The solution for the drooping shoulder was twofold. One, shift the handlebars 3 to 4 mm off center to the left. And, two, add two strips of bar tape on the top of the left side of the bars before wrapping them. While these adjustments sound quite insignificant, I’ve had much less shoulder, knee or hip pain since they were made.

So, I think a fitting system is just a tool. And there are probably many tools that will work…. If they are in the hands of someone who knows how to use them.