Full range of motion builds muscle faster than partial reps. Studies show maximal hypertrophy happens at end range, especially for chest. Train with control through the complete movement, not half reps.
You want to take things through full range. There are a number of studies that have shown that most hypertrophy or maximal hypertrophy happens at end range. So you see where I am now, this is end range of my pec. This is where I want to take this under controlled conditions. Again, taking my pec here enables me safety, enables me to build strength at an end range, enables hypertrophy which otherwise I wouldn't get. Don't do half reps, make sure you take things through full reps and take it under conditions of control.
