I would totally run this while waiting for 3.1 - it's the P3/4/5 tech that holds me back. Double-edged sword, that technology.
Regarding your shaky knees (or more specifically, the muscle groups responsible for stabilizing your knees), shaking is your nervous system interacting with your muscles - neuromuscular facilitation. When there's damage and weakness, the "connection" is damaged and weak, and there will be shaking as that improves. When you completely exhaust a muscle, for instance, it becomes "weak," and you shake. I think we've all experienced that. Anyway, as you continue to strengthen the muscle(s), and strengthen the communication between your nervous system and the muscle groups that stabilize your knees, the shaking will dissipate.
Regarding your shaky knees (or more specifically, the muscle groups responsible for stabilizing your knees), shaking is your nervous system interacting with your muscles - neuromuscular facilitation. When there's damage and weakness, the "connection" is damaged and weak, and there will be shaking as that improves. When you completely exhaust a muscle, for instance, it becomes "weak," and you shake. I think we've all experienced that. Anyway, as you continue to strengthen the muscle(s), and strengthen the communication between your nervous system and the muscle groups that stabilize your knees, the shaking will dissipate.