Ask HN: Fundraise for a side-project, or go full-time first?

Say you have a side-project that has started to pick up a bunch of momentum. You have a solid MVP, you have customers lining up at the door to use it, and you don't have a huge amount of expenses to keep it running, yet.

Your plan is to raise a seed round and go full time.

Do you go full time first, then start to raise?

Or do you try to raise with the expectation that you'll go full time once funding comes through? Free from the distraction of "how will I pay my mortgage?", with a straightforward transition from a full time job to a full time startup role.

Do VCs tend to prefer the former, or is it ever typical for founders to raise and then go full time?