I tried a couple thing son these "experimental" Pershings - first I tried with limited success the pin washing technique described earlier. I like the results but I can't get it to pop like the experts have done. I must keep working at it!
I also applied some pigment which doesn't show great in the photos. Not sure how it will look after I dullcote it and wondering what techniques people use with pigments? I was overbrushing and adding probably too much, but like the dusty effect. Granted from a foot away looks awesome but on the table rather negligible.
Your Pershings look great, Burt! They seem to "pop" just fine. I see the highlights as well. Excellent work!
I am an old school type guy and use Humbrol enamels and a turpentine base wash, either dark brown or black, to accentuate my models. I learned about the wash from GHQ over 30 years ago. I know there are other paints and washes available and if it works for you that is great.
Pigments are fun to use when you get the hang of it. Vallejo and AK come to mind that can be easily picked up. Washes... all sorts of garbage to throw on your models. As Pete eluded to, there are many ways (old and new) to achieve the end result.
A good way is to research and see what brands/approach works for you. And then trial and error. There is always the argument about pigments and sealing your model. If/how it changes the color of the pigment when all is said and done.
Charlie don't surf!