I'm not super familiar with Faskolor either, but on other forums, I've heard mixed reviews. Some say if you thin it with plain water, it tends to get clumpy in the paint cup... don't know why that would be, but maybe Fascolor has a particular thinning agent that they recommend. Always thin it out to at least the consistency of milk, and maybe a little thinner depending on the size of your needle and nozzle. With the VL, make sure you have the matching needle and nozzle, when I used mine with solvent paints a few years back, it was not finicky at all. I could have the medium nozzle in there and use either of the three needles and it would spray ok... I was only using t to put fades on guitars, so it wasn't anything fancy. Then, when I started airbrushing for real, last year, I switched to water based paints so I could spray in the house, and suddenly my VL wasn't working right... couldn't figure it out, until I pulled it apart and noticed that the needle and nozzle were different sizes... I think I had the fine nozzle and the medium needle... don't really remember, but whatever combination I had, it had sprayed the solvent paint fine, but I couldn't do a thing with the water based stuff. Also, with the VL, I found that even with paint reduced a lot, I still had to spray around 30-35 psi to keep it happy in most cases. Just a few thoughts. Hope it helps.