I'm showing a .754" as max case length. So, you are under the max length. I would just load them up and go. I would never trim a 9mm case, ever. It's not worth it, and the cases are plentiful. Plus, the chamber will allow a little more than a .754" case length anyway. Just load them up and go. On the crimp, the 9mm round, as well as many other non-bottle neck cases head space on the case shoulder, so a crimp is normally not needed. If you do crimp, it will be a taper crimp, not a roll crimp. I would not crimp.