i have a reseller hostgator HOSTING account.
i bought most of my domain names from namecheap & hostmonster.
i want to transfer domain registrar to 1and1...and keep hosting on hostgator (where i have private nameserver where i got it from namecheap)...
will there be any DOWNTIME if i transfer domain registration from namcheap to 1and1? and hosting is on my own private nameserver (...do i RE create my private namserver on 1and1)?