Been s-l-o-w-l-y building on what was once a toe wiggle/flicker in my leg. The left leg has become much more active than the right which is about 9 months behind. Now, on a 45 degree sliding board, I can finally do sets of squats. The returns in my legs have been like aging, they happen so slowly you don't notice them adding up.

I've also noticed that if I let too much time go by not exercising, the nerve activity goes back into hibernation. It takes a couple days of working to get back to where I previously was. It's safe to say I would still be just wiggling my toe if not for 100's of hours of patient exercise.