EDIT: oh ure from denmark...
Out of the night that covers me,
Black as the Pit from pole to pole,
I thank whatever gods may be
For my unconquerable soul.
In the fell clutch of circumstance
I have not winced nor cried aloud.
Under the bludgeonings of chance
My head is bloody, but unbowed.
It matters not how strait the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.
Peak contraction: flex as hard as you can at the very top of the motion
Stop the stretch reflex: instead of bouncing and letting the thickness of your tendons do the work due to their elasticity, slowly lower the weight and pause for a good second at the bottom of the motion, but still keep it flexed.
I personally like Arnold's methods. Go as heavy as possible, increasing the weight all the time. Train calves first before anything else. Train them almost every day. Any rest that you do take between sets, don't rest but instead stretch the calves the whole time.
Don't stop training the calves that day until you are walking around like it was your first night in prison.
Have a look at what you do for any muscle. Most people do calves last in a session with the least levels of energy available, and then it is only once a week. Also calves have a great propensity for storing elastic energy, so you have to make sure you aren't just bouncing. Make the movement controlled.
Try doing them earlier in the session, try several exercises, use a full range of motion (i.e. calf block is needed), control the motion and use heavy weight.
Research has shown that you get better activation and recruitment from using a heavy weight on calves.
Have you tried calf raises on the leg press? Donkey calf raises can be done just about anywhere. IMO the DB standing calf raise is probably the best calf exercise you can do. The main thing is to make sure you have a block to stand on to get a proper range of motion. I've used all sorts of things in the past, including a couple of plates piled on top of one another.
Also I can't see the point of reps over about 20. If you are using a heavy enough load to get the best activation and recruitment then you can't really go more than low teens in terms of reps.
I do not have a training partner, so i don't see how i could do donkey calf raises, even thought i haven't tried doing them.
And when i do db or bb raises i usually use a step bench to do them on.