I would think that most of the energy goes in between 12 and 3 o'clock and then flexes out from 3 to 6. So if the flex pushes back against your leg a good part

I would think that most of the energy goes in between 12 and 3 o'clock and then flexes out from 3 to 6. So if the flex pushes back against your leg a good part of the energy should go back on the road.