That article described exactly what I experience. My PT said I don't have a leg length discrepancy, but I "feel" uneven. I am always crooked on my saddle and my pain is all on the left side; lower back, shoulder, crotch, groin. It's pretty bad when I climb, unless I am very warmed up. I know I have mild scoliosis that was never treated.
Oy, I am going to be right near that fitter when I go to San Diego. But, I won't have my bike with me...