Your patient cannot sit and cannot squat in the gym without lateral hip pain. They believe it is their overactive TFL. But is it the cause of the problem? Most likely, it is NOT. Why would someone have increased tone in a muscle? Think about a movement pattern where someone's center of mass is shifted to one side because of an old contralateral foot injury? You injure your foot and you weight shift off of that side where you stay that way for YEARS. Until one day, you run out of options. Sound familiar?