That's probably a big part of it. We've got our share of cold and wet weather in Japan, but I think Finland wins in that category!
That's right. You're always on the balls of your feet, and you stomp the floor hard with your right (leading) foot while launching yourself forward with the left (trailing) foot.
It's not, I agree. I do a lot of cleans now, and my program over the next few months is going to include quite a lot of clean exercises: power clean, clean and press, clean-press-squat. I won't omit the calf raises completely, unless they're really unbearable. As I mentioned, it's only when my bodyweight gets up above about 80kg that the chronic pain starts. We'll see how it goes.