OK, I'm still doing something wrong.  I was painting one of my Pegasus Knights for warhammer tonite and it's still funky. I used water, a couple drops of the gooey retarder and a  few drops of Model Color black (The black is not thick paste like the Vallejo white).

What happens is this. It sprays great for 3 seconds then it stops spraying paint. Just air.  I keep spraying on a paper towel until I see it coming out again and then spray the object.  Now it's all watery.  I stop and stir the cup and barely any paint comes out. I adjust the brush for a wider spray and the paint comes out and I spray for 3 seconds and it does it again. 

It's clogging the air brush from what I'm figuring.  I'm thinking the paint falls and settings to the bottom of the cup.  Am I not mixing it enough? I'm shaking all the bottle for over a minute before I mix it in the cup.  I also tried to use Windex as the thinner. Same effect though it seems to hold a little longer on the mix.  I'm thinking the paint is separating too fast in the cup OR I'm just having problems with comprehending the simple concept of "Mixing". LOL  I mean, how much more can you extend the "Stir the paint in the f@#$!#g cup" technique?

 

It's the paint mix for sure.  Before that I was base coating 50+ figures with Mr Base and Mr. Surfacer as if I would a model and it was working fine as usual (freaking used up my bottle of Mr. Base and had to switch to siurfacer).