My collection of Space-marines are now approaching the company size level of over one hundred marines. Probably not the best time to try and alter the look of them as it will take a while to run through them all. When I was painting up some Necrons I dry brushed a black base with the old bolt gun silver I noticed how good it looked just doing it lightly. It really brought out the edges. So I tried it on the new assault intercessors and I did three varients. I got ahead of myself and started hightlighting before I'd really finished the base coat but I figured I'd need to tidy up my highlights anyway.
First is my usual highlight with "fang" blue
Next I tried just the silver on its own.
This came out really well and I liked the effect.
Next I tried putting them together.
It's hard to see on the pictures especially as they are not finished but by eye it adds a lot to the look of the model and seems to give them more depth.
I'm liking the dual highlight and it'd be easier to retrospectively apply to my old model but others have said they prefer the silver on its own.