My domain:

I'm having a reseller package with for above domain with 2 nameserver:

I signed up a VPS with Servint for above domain too. In WHM I do as follow:
Create my hostname:
Create 2 nameserver: (first IP from Servint) (second IP form Servint)

Am I correct with above settings? Is there any conflict?
When I create new account for my client on VPS, is it correct to inform them to change their nameserver to: and

Note: I want to keep my reseller account at for current clients, that why I set as above.

Thanks, Support Ticket Number: