Agreed, he's throwing low 90s and doesn't miss bats, I figured he turned himself into a smoke-and-mirror sinker guy, but looking at the pitch values, looks like he did something to his curve to make it deadly? But there's a reason that curveballs have become a bit passe; once the book is out on a pitch that basically just breaks vertically, the dam will come crashing down. Ask Tyler Duffey.