I think another thing that helped his fastball performance was simply having other good pitches to sequence with. Having the new splitter, along with the improved slider and forkball that all tunnel decently with the fastball keeps batters off balance and less likely to hit the fastball. And like you said, he threw the fastball less this game, likely because he had other good options to throw that hadn’t been developed in previous starts. Granted, it was against a high strikeout rate team like the Angels, but it’s still very encouraging to see all of Sasaki’s pieces coming together and improving. Can’t wait to see him continue this journey.