Yoga 50:00 [1]
Hips, hips, hips.
The outside of my right calf is apparently tighter than my left. We used straps to stretch outstretched legs (one at a time) outboard of the centerline/pelvis and then inboard (across the body as we were on our backs). When other people were feeling it in their outer thighs, I felt it in my calves.