I received a wonderful gift from my father, genetically small and thin calves. Now, I won't claim that they are huge now, but I have made noticeable improvement in my mind. Plus I've doubled the weight that I used to do. This is how I did it. HST training !!!!!!! You can do a search for it on the net and read up on it if you want. If you don't want to go full bore into this type of training you could consider just training your calves 3 times a week but drop the volume to just 3 sets per workout. I find that the lower volume, yet more frequent workouts make the difference.