His stuff looks 4/5 to me, but his results say he could be a 3 long term. There aren't many 1s in the majors, less than 30 for sure......Frankly, if he's a 3/4, that's a good, valuable player. Any player can have success for a year or two, the real test to me will be next year. If this level of success is sustained, then I'll be more of a believer that he's "really" a 3. Either way, I think he's good enough to be a legit MLB starter, and the Twins should be happy he's here right now.