I use the slightest roll crimp possible.
If i use a crimp I only use a hint of a crimp. I am the one that uses all of the bullet hold I can get.

As I said in the old days crimping was considered to be a bad habit. It was possible to loosen bullet hold with too much crimp. And then there is that problem with crimping the bullet to the case while the bullet is being seated (moving whole crimping). The waves?/wrinkles/ ugly cases are created when the case digs into the bullet; in the perfect world the seating operation must stop before waves are created (wait for it, here it comes) unless a seating die with case body support is used.

And then one day I gave some of this stuff a little consideration, I made a seater, it had no die body, I used the seater in a bottle top press, I was impressed, I sent one to the most admired reloader on the Internet.

F. Guffey