No, he hasn't. He lowered it from GCL to Billings, then went up in Dayton, then down in Bakersfield and now up again now that he is in Pensacola.
26.1%
17.7%
21.8%
17.9%
19.6%
That is his strikeout rate by level. Down, up, down, up. Lowest rate of his career was in Billings.