my body was designed in such a way that my calfs are inserted really low and they seem to carry me while im walking, so im particularly sensitive to this. i notice whenever im on anything, that it tends to happen. for example, when im on and im walking from my car to class, i HAVE TO stop half way for a break because my calfs get so pumped i cant walk. its something you can adapt to over time though. you have to work at it every day and it will get manageable. always happens to me on gear though regardless.