Sale is not a good example, because his arm angle is lower after having suffered long term injuries. The lower arm angle is probably to take stress off of a high mileage arm.
Tolle is not a good example because he is searching to become league dominant. He hasn’t changed his arm angle after dominating the league. You don’t change what is working in a dominant way. The moment Crochet’s arm angle changed his pitches flattened out and he sacrificed depth on his breaking stuff, according to the radio announcers.