Sometimes pick up magazines in the trash at the PO. Recently picked up the May/June issue of Wiring Harness News, then found the previous article on their website.
Here are a couple of articles that pertain to doing a quality crimp.
ERROR DETECTION IN CRIMP CONNECTIONS
[SOURCE: https://wiringharnessnews.com/error-detection-in-crimp-connections/]
(2023, March/April issue)
MICROGRAPH THE INNER VALUES OF A CRIMP
[SOURCE: https://wiringharnessnews.com/micrograph-the-inner-values-of-a-crimp/]
(2023, May/June issue)
[I have learned to not depend on on-line resources still being there later, when you want to see them again, so I copied these two articles into MS Word documents. If this is worthy of being in the downloads, I could provide my copies. A PDF issued by the magazine would have been better, but I didn't see where they provide that.]
Now to find a quality crimper that will render this kind of connection.