That would be neat, indeed!
First, year of manufacture should be on the slide right side, up by the muzzle, with the proof marks and serial number. It's just the last two letter of the year.
First gen Duty was a different beast than now, and all of the poly pistols material was upgraded with the blend used for the P-09, so different color might happen, as my first gen Phantom is darker than my P-09.
Hornaday Critical Defense is an EXCELLENT "czoice" for defensive ammo - that's what's riding in my SP-01 Phantom right now.
Welcome to the forum!