Backwards shoulder dip/tilt then becoming linear

If you dip/tilt your shoulders (almost pitching uphill) and then come level/linear will you get any velocity or will it help with control or anything? Or will it just hurt my control, etc.? My arm action is pretty long and I think that extra second of the shoulders becoming linear will help with my timing. Much like David Price does. Here are some .gif’s courtesy of xv84:

This “tilt” will create a stretch in the front side and allow your shoulders to resist rotation once the front foot lands. The shoulders resisting rotation creates separation. Same thing in hitting.

It also allows you to lead with the hips.

It also allows the throwing hand to travel a longer curved path into release. Look at the ball and look at the path it travels.

It can help your control by keeping the front shoulder closed longer.