Cramping (when not caused by dehydration or salt imbalance) tends to be caused by confused muscles.
When you say you’re pointing your toes like crazy, are you pointing them ALL the time? I find the most common cause of calf cramp is from flexing the foot when your knee is bending. Pointing toes and bending the knee use the same muscle (calf), so if at one end you’re contracting (bending the knee), and at the other end relaxing (flexing the foot up) the muscle gets confused.
I used to get cramp all the time when air-inverting, as I’d flex my feet AS I did the invert, but by the time my legs were over my head and I could see them, I pointed (So it took me ages to realise the problem).