This is one of the concepts where I have a short-circuit.

Here is how I relate Zones to Print.

I took a step wedge that had been developed to "N" and contact printed it on Grade 2 paper. This related sensitometric exposure of the negative to print.

I selected a white patch on the test print and treated it as IX. Then, skipping steps to make them one stop apart, I cut chips out for the different zones down to Zone 0. (I estimated 0.4 flare when selecting representative chips for II, I and 0).

Now if I examine a scene that I could call "N" with the light meter... Once the meter is set, everywhere I point the meter corresponds to a specific print chip. If I am happy to accept that chip as what I am likely to get on a print of the scene, then I use the indicated exposure from the meter.