Not to tell you to give up and all home is lost, but I seem to remember Charles Poliquin teaching that calf size is primarily genetic, and influenced the least of all your muscles by exercise. I remember some comparison between an IFBB pro and his brother who didn't lift, and both had almost the same size calves. I think it was in the book "bigger, stronger, arms"
No personal experience with this theory, just read about it. Have any of you seen significant increase in calf size through training? I'm sure it's possible for some, just saying its possible that your calves could always be a smaller muscle on your frame.