Literately, during those two days, I was refreshing it every 3-4 minutes, and there were times where only one server would be available, and there were times where every server but Excalibur was available for about 10 minutes.
If you want to try and "queuejump" you will need your friend to basically sit there and refresh the servers between 1 and 3am. There is a hotfix patch in 2 hours. I'd suggest having them save the character appearance of what they want to create now, and then create their character immediately when the server comes up. That was pretty much the only option for Excalibur. Other servers you need to camp the server selection screen until 5am. After 5am, it's usually just Diablos, Famfrit and Lamia availability rotating around until about 7pm.
But I'll understand if your friend is irritated by this. It's pretty hard to get populations to migrate.
I made a suggestion last week about making the congested servers "invite-only", whereby you need a friend already on it to email you an invite code to place in the mog station. That would temporarily reserve a spot on the server that the friend is on. There were suggestions that this might result in a kind of blackmarket (Eg people selling invites) but I think that might be overblown since that would be easily traceable as RMT.
