my experience
I received my best results with higher reps . . . a minimum of 20
and as high as 50 or even 100 reps (rare), multiple sets, 2 – 3
times a week.
Donkey heel raises were a favorite when I had a training partner.
Now it’s toe presses on a leg press machine and / or heel raises
on a smith machine. Seated calf raises I do now and again. 1 legged
calf raises I have never been a fan of but when I did do them, I got
brutally sore.
I also believe that a full range of motion is overrated. Sometimes I
work the lower, stretched part of the movement (rare), but mostly
just work them like Phil Hernon recommends; not stretching way down,
stopping when the soles of feet are parallel to the floor or when I
don’t do them off a ledge, when my feet hit the floor. I believe this
has helped, not hindered, what little development I do have . . .
Going all the way down, stretching under a weight will initially make
them sore if not done consistently, but I’m not convinced it equates
to overall growth (and I’ve done both). As a side not, some of the
people with the best calf development rarely, if ever, work their
calves directly. I know, I know . . . it’s just not fair