His K% went down from 23.3% in 2012 to 14.8% last year. Not coincidentally, his OBP went up from .335 in 2012 to .359 last year. And despite those 27 homers, his wRC+ was 121 in both 2012 and last year. He traded pop for contact, and, as a result, he still provides about the same all-around value offensively. How did his advanced metrics look the next year when he hit 14 HR's in 100 games & had a pretty nice OBP still at .350? He'd already changed his approach by the next year. There is a pretty clear delineation between 2010-2012 and then from 2013-2015 for him. There's not much different in how he has hit balls. There's maybe a little difference. He did hit a lot more ground balls last year. But the two years before that seemed normal. He's going to the opposite field maybe a bit more, and not hitting as many hard-hit balls. But the differences there aren't hugely significant. As far as his approach, his swing%, both in and outside the zone have remained pretty steady. There is one big difference, though. And that is in how often he makes contact. In his first three years, he never had a contact% over 80%. He's been over 80% all three years since then. In 2012, when he set his career high in homers, he also had a career low 75.4% contact%. Last year, he had a career high 84.2% contact%. Those are clear and noticeable changes. And it appears he sacrificed some power in making those changes. His ISO from 2010-2012 was .186. From 2013-2015, his ISO was .141. However, his K% from 2010-2012 was 21.6%, and his K% from 2013-2015 was 15.4%. I'm not sure which Heyward I would rather have. I think, overall, he probably was a little better with the extra pop, despite the increased K-rate. But, I do like when guys make more contact. Ideally, he would be able to take the good parts from both approaches and somehow meld together Power Heyward and Contact Heyward into some amalgamation of a Super Beast.