Another boring nameserver question!
Hi,If you're like me then you'll agree that nameserver and DNS questions are pretty uninteresting. Perhaps this would explain my lack of in-depth knowledge on this subject!
I've tried a search but to no avail

Here we go:
Domain has 2 nameservers registered, NS1.DOMAIN.COM AND NS2.DOMAIN.COM
They're changing IP addresses (a new shiny server etc.) - what is the best way to go about this without impacting uptime?
Running cPanel - I tried to assign NS1.DOMAIN.COM but naturally that didn't work as nameservers are already registered.
So I need to delete the nameserver from domain registrar and then create nameservers on cPanel and then register nameservers with domain company (I think).
Is there a more efficient way of doing this that will cause minimal downtime?
Thanks in advance

Kevin