Since I'm using pfSense as my DNS server (behind a PI-Hole blocker) I have the pfSense DHCP server pass out the preferred NTP servers so I don't have to go to multiple systems to tweak them. A couple boxes that have static addresses assigned do have the NTP servers defined in their config and do need individually tweaked which is much more aggravation than the DHCP option.
I use the FQDN here too, that lets me easily move a server to a new IP if I decide to rearrange my IP assignments. Every step you automate is one you won't forget to do and get a 2:00 AM call about!