I personally don't think calves are a muscle group that are suited to bodybuilding type exercises and need to be stressed in an entirely different way than most bodybuilders train them.
The typical orthodox bodybuilding exercises like donkey calf raise, calf raises for 10-12 reps etc I don't feel works very well in my opinion because it doesn't repeatedly stress calves in a way required for long enough.
Think about it you stand on your feet all day, the calves are used to stress and your body weight already as it is making it harder to stimulate them further even with heavy weight training so much can be achieved in terms of volume and blood flow and time under tension of the muscle in that area.
What I always found is that my calves muscles seem to respond entirely differently and will come out more through exercises such as uphill interval sprints, skipping on your toes for extended periods, toe jumps and stuff like that basically.
Key is in my opinion repeated and long blow flow to that area.
3-4 sets of donkey calf raises only makes the muscle become under tension for what whole of like 3 for minutes.
Go running uphill for an hour and that's literally one hour of stimulation in that area etc.
Not about the weight but about the constant blood flow and tension in that area etc
