06/29/2016 - 2016 Under Armour Showcase: Baseball Factory's National West Sylk continues to show a big upside on the bump. He had a solid showing at the event. He attacks hitters, throwing a lot of strikes as he works to get ahead of hitters through a quick tempo. Arm strength has improved as he threw his top velocity to date at 87 mph. Fastball showed solid cutting action. He maintains arm speed on his changeup, showing a feel for. Arm action is quick and free, working well to the plate.