1. If it's a newer ship I haven't gotten into any interactions with, sort of often. I usually have a broad plan or an idea in mind and it either finds traction or doesn't. If it's the latter I rename after switching up ship type/location for a new idea. If I end up enjoying the character I'm playing, it tends to stick around.
2. I name it something, and then say "wait, I hate this actually", and then name it again, and say "wait, I hate this actually", and then name it again...