I believe that the point of the post was that Lugz no longer needed to go through the stain process.
That is correct. From now on, I will be using Midwest Military's TM9 'Signal Corps Type I' on every 1940's OD green box project, military or not, including Plomb, Snap-on, and S-K. I may still use some techniques for "aging", patina, etc. But it is the closest to 40's toolbox green I have ever seen in a commercial rattle can.
EDIT: There are all kids of techniques for wrinkling (a coat of enamel before a coat of oil-based paint; a hairdryer; and others), but I still think the easiest solution is a base coat of wrinkle paint, any dark solid color, fully cured, followed by a very light coat of your final rattle can color.