Not so.
TCH uses a MASTER/SLAVE DNS System.
So instead of the server your account is on handling the DNS for your account, we sub it out to a master and then a slave DNS server. Why do we do this. Redundant Services.
Instead of one server handling DNS requests, which is typical for hosters. The name servers we give you are redundant. So if the master dns goes down, nameserver #2 is a seperate server. Thus if dns lookufor your first Nameserver failures, it rolls over to the slave DNS server. Its very slick.
However, it can slow down a new dns entry as it has to propagate to the Master and Slave DNS. The max time this would take is 15 minutes. In most cases t is instant, but there can also be a delay.
Just thought you would like to know.