The knees ar misted with UP armor yellow. But mist in streaks if that makes sense it's kind of splotchy. It creates a darker shadowy area. Do you happen to have any photos of the shoulders from AOSW? you can see a slightly darker yellow misted on the bells.
As for chalks I used a little bit of black and dirty gray. I bought them from micromark they are called weathering chalks. Actually a friend of mine sent them to me to try out LOL. After painting the bells yellow I then loaded up the airbrush with the UP armor and lightly misted and concentrated in a few areas to creat slightly darker spots (very subtle) I then scratched of my scratches and dents and dirtied it up with chalks(This was the only area of the armor I used chalks)...I like anything that doesn't looked airbrushed when it comes to weathering.
If this is still confusing let me know. I darkened the pic a tad so you can see misting I hope and they look a little orangish because of that but they are yellow.
Here's one of the jet pack not one drop of mixed paint and no misting except for weathering. This one is going on EBAY very soon. The scratches aren't perfectly matched since I built it as a test pack to test technique. I'll get pics of the suit up soon hang in there.
Lee
