Hi, 1st timer here. I have some level 1-2 clients that can't get through footwork on 3 red springs and they get to feet in straps (1 1/2 springs) and are working though pain. I am at a loss. I obviously can go to lighter work, but the bigger question is why. I have been seeing them for at least 6 months and they are very different. I want to create terrific programming and they come 2x a week. Why do their feet still cramp?