I used 0 which in the case of the 400 system is white light only.
That's *very* odd indeed. White light is generally between grade 1.5 and 2.5 depending on paper (usually 2-2.5). Grade 0 is *always* more or less pure green - or at least green with so little blue in it that you wouldn't notice it.
I now realize the Analyzer always gives you some green and some blue to get grade 00
Could be; I never used the analyzer. All I know is that if you throw only pure green light at VC paper, you get really low contrast and most papers will never be able to create full black. You actually need to add in a tiny amount of blue in order to get a usable result. You could think of pure green light as a kind of grade "0000" for papers - not a grade that will actually work (well), but it's sort of theoretically there.
I can promise you you can get gorgeous prints this way.
Oh, I believe you alright. It's just a slightly odd way of working.
Give it a try with something closer to grade 2. You'll find that you still have all the control that lith gives you - but probably with shorter exposures (not a luxury with lith in my experience).
I'd also recommend reading up on how VC papers work and how the green and blue light colors work on the different emulsions in the paper. It'll benefit your approach to lith printing and especially regular printing.