Well, if they're anything like mine then I don't see that overtraining them.

I know you said they're sore all the time but how close are you coming to
failure on your sets? Also have they grown at all in the past? My calves do
seem to stall out after a while no matter what I do and I have to change
things around often. They'll be sore and the weight will be increasing but still no growth.

If that's the case then 0311 DC training suggestion may be a good "shock".