Hips and your arm

Ive seen lots of peopel on here saying that your shoulders and hips shouldnt open at the same time and that your hips should open first…correct me if im wrong but i thought that they both happen almost simultaniusly

hips open before shoulders… look at joel… he throws 100+

The entire delivery takes very little time so things do happen quickly. But the hips do - rather, they should - open before the shoulders. Look at some of the video clips on this site using Quicktime so you can step through frame by frame using the arrow keys. You’ll see that most of the top pitchers in the game open their hips before their shoulders (although the amount of hip and shoulder separation varies from pitcher to pitcher).