I believe the short to FFS is referring to isn't the same as just pushing the hands to the ball but more of a "short hands" approach such as this:So, Why do we often say to Parent, Coach etc. That has a young player that they need to turn the barrel etc.? I'm not arguing that turning the barrel is not correct etc. by the way, but at the younger ages do you think that learning "Short to" builds a better foundation first to then build upon and add turn the barrel etc.?
At the end of the day, most MLB'ers probably got to the point where they are through tons of reps and they were good enough athletes such
that they were able to best utilize the feedback from these reps. There are also some who made it with pretty lousy swings, perhaps due to lousy
instruction, but were such phenomenal athletes that they could get away with it..until they couldn't e.g. at the major league level. JD Martinez is
a prime example of this.