So looking at the way too small sample size of the Harris data... still have no idea how he managed a sub 1 ERA over 50 innings in AAA..
Munoz on the other hand.. the data loves him as much as the eye tests do. That sinker is excellent. and he pairs it with a pretty good Slider. He threw one pitch that was called a change that was also plus, but I think it was mis labeled personally. The delta between the FA and change was like 4 mph.. it dropped similar and almost exactly same run as his sinker.
I think if Munoz could master a true Change, he would be elite level closer given good control. which is what worries me with him.