At any rate, the guys I've heard speak glowingly on Rubby are Law and KG, at different points and a bunch of guys at fangraphs. FWIW, if he were rookie eligibke midseason last year, Law would have had him in his top 25 and said he has ace stuff. Mike Newman, from ScoutingtheSally says he's got the best FB he has ever seen live. If his slider can stick as an average pitch, I really see him as a 1 or a 2. The change is a plus pitch and the FB may be plus,plus. Endurance could be an issue, due to his size, but I really, really like him. Control needs a bit of work too. I really wanted him in a Dempster or Garza deal badly.