I've always had skinny calves and the only thing that made them grow was loading them to a complete failure every time. I mean when they're so tired that you can't even do a light set anymore. How to get there doesn't seem to be that important - high/low reps, medium/heavy weights - it should all work if can't walk after you're done. Obviously, if you work out this hard then doing them every other day is not going to fly, you will definitely need more time to recuperate.