Consider these curl correcting tips when gunning for bigger biceps.
Mistake #4: Don’t Stop Short
The way to force the most muscle fibers into exhaustion is by moving them through their FULL RANGE OF MOTION. Start every rep with the biceps fully lengthened to get the most out of every set and to take advantage of
the growth-inducing effects directly initiated by stretching a muscle under tension (which include satellite cell activation and local IGF-1 release).
http://www.muscleandfitness.com/news-and-features/galleries/training/7-reasons-your-guns-arent-growing/slide/4
