Hi Michael (@michaelt). I was in the same boat with weathering, and I think I had tried everything. Acrylic weathering dried too fast, I liked artist chalks, but they weren't very versatile. A couple of years ago I started experimenting with artist oils and discovered how useful they are. I had taken an oil painting class several years ago, so I had a number of colors already laying around. The more I use them, the more I like them. I keep experimenting and finding new ways to use them. The other key is using Odorless Turpenoid. This is a manufactured turpentine designed for artists. No odor, it is non-aggressive to most other paints, and it dries flat. I paint my models with acrylics, so I can use them directly on the model's paint without dissolving or picking it up. If you mix up a wash, it is easy to apply with a brush, then adjust it using both a dry brush and a brush slightly damp with Turpenoid. It stays workable for hours, so you can work with it until you are happy with it. There are lots of ways to get other effects. If you dampen the surface first with Turpenoid, then brush on tiny dabs of paint, you get one effect. If you apply streaks or dots of paint directly on the model, you can then blend or streak them using Turpenoid. I experimented on this model with using the paints as "filters" to change the color or hue of a specific panel. There are a ton of YouTube videos that show you many ways to use oils. I do differ in one way from most of the others because they say you should apply the oils on a gloss surface, but I have always used it over a flat surface. If you have never tried oils, I think you would really like the way they work. I experiment a lot with the paints, but usually not directly on the model. I will paint a piece of plastic with the paint I plan to use on the model, then experiment with the oils I plan to use. Anyway, if you haven't tried oils, I recommend you go watch a few videos on YouTube and give oils a try. You probably only need 3 colors to get started: black, burnt sienna (oil stains, dirt), and tan (I use tan to lighten panels and simulate fading). By the way, oils are used extensively in armor (armour) modeling, so you can find a lot of good info in videos on armor modeling. Sorry, got a little long-winded here. Let me know if I can help.