When you get to my point of 3 times transfers, I mean if the dev can't have the swap two characters option, it'll be like this:
1. Tonberry char > transfer to another world for temporary (Let say Ragnarok).
2. Next, Excalibur char > transfer to Tonberry.
3. Again, the Ex-Tonberry (Ragnarok?) char > transfer to Excalibur.

That sums up total of 3 times transfers.
If I delete my tonberry char, that of course only one time transfer. But I do not wish to delete it, so I keep it.
Main reason why I wanted to move, its because I live in Asia, a few friends were playing there, and the lag latency experience.
Also if I move my Tonberry char to Chaos data center, and then transfer again to Excalibur, would that consider free of fee charges?
If they have same name with my characters, that I have to pay for name change in order to transfer. So far I checked on both servers and names, none similar.