So this pitch was labelled as a Cutter by Pitchf/x, but that's just wrong and we're not going to make the same mistake here. Lackey's Slider was incredibly good last year after having a rough 2015 and the biggest difference was...its BABIP. Movement was similar (a touch more horizontal bend), velocity the same, location the same, but that BABIP went from a .383 to .189 last season. Sure, the Cubs defense helped but I can't expect the same pVal to return with the pitch. It's 20% whiff rate should stick around though and it will continue to be Lackey's best putaway pitch.