Load up those 30, and see if you can find a difference on the target. I don’t think you will see that the less perfect looking jackets perform differently because of creases or even seeming signs of brittleness.
I have looked at these bullets under a microscope, as well as others. Despite what they look like, invest in the other components as an experiment and send them down.
While that area pictured might appear to be the origination point of a future jacket failure or a flyer, there are next to no known blow-ups with 180’s even though many of them almost appear to have pleats.
I would not want to look at that getting into deep sea submersible, but jackets I have found only fail by their heat sensitivity, or the core’s, not anything else that is independent of heat, like normal fouling levels, and 180’s are exceptionally heat tolerant.
Try 10 of those 30, against the most ideal looking 10 for group size and post a picture.