BlkWS6, sorry bro I disagree, sometimes I go months at a time doing only two sets for calfs a week on the leg press machine doing half, maybe 3/4 reps with 1500 ibs on the leg press. Although right now I also do donkey calf raises (high reps because donkey calf raise machines always have such a damn light weight stack, but if you only take 10 seconds between sets you can fail before rep 20 on later sets) twice a week too, and I do get a good stretch. However the lift is designed for a stretch. On lifts that force the muscle into an extreme stretch at the bottom (donkey calf raise, sl deads, incline curls, behind the head tricep exts, etc) you can get the benefit of a myostatic reflex by going deep into the stretch, but on most lifts it really is irrelivant.
Jolly Rodgers, ok bro, try this, do a set of donkey calf raises to failure with the entire stack, slow negative, deep stretch, explosive concentric. Immediately superset it with a moderate weight on the standing calf raise, followed by a double drop set (go down in 50 ibs increments) once you fail, go back to the weight you started at and do some burns at the bottom. Do one set like that twice a week and see how your calves do. The shape of your calves is genetic. Your lateral gastric head has a shorter insertion than the medial head. Big deal, I have the same problem, but every bodybuilder I know give me props because of my calves.