I have the texts of both ceremonies, to de-name a craft (and yes, you should remove the name of the vessel afterward) and to name/rename the vessel. This is supposed to keep you in the good graces of mighty Neptune and the gods of the 4 winds (names escape me).
Hell, it's a fun 2-champagne bottle ceremony anyhow (no, you do NOT strike the boat with either of them, you and the First Mate do drink what is not offered to the gods (excess)). Also, you can have the ceremony before putting the name on, but, if you put the name on first, it must not be displayed before the naming is completed (cover it). The ceremony IS done afloat, but is allowed to be done docked.
I like some of the ideas for "follow-on" names, not just "Soakin' Wet II", let alone using the same name again.
Personally, I would just leave it named, go with something different, but tell the next owner that should he decide to rename it, of the ceremony, or risk the ire of the gods.
give em up. I need to be educated in this ceremony