But isn’t it no pain no muscle-gain? In rare cases this can be true, but this depends on your particular goals, level of experience and training plan. For most guys stopping short of total muscle annihilation will get them to their goals much faster. For ectomorphs looking to quickly build muscle this is always the case—unless you’re such an enormously muscled ectomorph that no one would ever describe you as one. There’s a very big difference between uselessly fatiguing yourself and getting a good workout, but even most advanced trainees can’t recognize the difference. I’ve been there.
But isn’t that last rep the only one that matters?! Isn’t that last rep the one that separates the weaklings from the champions?! Grab a seat by the squat rack, and let me tell you about keeping 2 in the tank.