this is areal bummer.... and with over 20 domains, I decided to approach it differently.
First of all, I have my own domain name server on one of my dedicated box. So, even if I move the site to another host or whatever, all I need to do is to change the IP address in my name server, and it works instantly. Notice, I do not change name server ( me) , just the IP.
I also add another 2 name servers outside of my network at zoneedit. It is free, and can act as a fail safe in case of a failure on my name serever. Again there, just the IP is changed when required by a move, so instant...
