Just pulled the plugs for photos. None of them look particularly good
The engine has not been run since the Tuesday evening drive aforementioned in my first post.
Plug #1 doesn't look too terrible. Slightly wet black.
Plug #2 is very powdery black again.
Plug #3 looks the best, there's actually some non-black metal visible!
Plug #4 doesn't look great. Pretty black but not notably powdery.
Plug #5 looks the worst. Thick powdery black again.
Plug #6 has the most black on it but it's all oily/wet, not powdery.