mmm in that case it might actually be better to change my name servers BEFORE I ask TCH to move my database, then when I see it has resolved, ask for the transfer since that would minimize the downtime my forum users would experience (assuming I would get help moving all my files relatively quickly). Otherwise I would have to shut down the board first, ask TCH to move my stuff, then change the name servers and wait with the board off for 1-3 days, because all new posts made after TCH already moved the database would be lost, since the database with TCH would be based on an older sql dump.
Does this make sense? Think I should do this?