One potential strength of the team is a wave of quality strike out arms in the pen, but they must be used creatively. (sbnation.com)
Without any one of them, you'd be missing out on potential strength gains. (sixstarpro.com)
The reason why they are so effective is that they target each arm separately, which eliminates the development of potential strength imbalances whilst building new muscle mass. (fitnessandpower.com)