My right leg had a full knee reconstruction and there is still a rod in fibula after a motorcycle accident years ago. I have less than optimal right ankle mobilty as well. My lifting shoes help out hugely when i squat....so i tried a TGU with them on.....wow. The lunge has always been painful on my right knee, but with the raised heel I feel much better. I will keep experimenting, but if the shoes allow me to progress faster than fantastic! Anyone else ever try the TGU with lifting shoes?