Hmmmm.... Just wondering but what's the status of his glute med, glute min, QF and TFL? Reminds me of my speed skaters in a way and a strong thumb (or elbow if he owes you money ) in these structures mimics the pain from time to time.

Did you perform your assessment (postural/biomechanical/visual) in his telemarking position? It would be interesting to see if he has good heel cord length.

Adamo