"I think it's feel in my opinion," Pena said when asked about the stretch. "It would go against human nature to ignore feel. You may have the most perfect swing, but I'd rather have a not-so-perfect swing and feel good."
Pena noted that when he's going well, the mechanical details of his swing are out of mind.
"Usually, when it's kept simplest, it's the best, even though you do have to pay attention to some issues that may be hindering your swing," Pena said. "... There are times when you have to pay attention to mechanics, but ideally you want to be as clear as you can."