I packed some solid ass black in to mine using silver back. About a nickel worth of needle and slow hand motions work good for solid. I had a lot more trouble with washes. They just ended up solid looking. And I could barely get my stencil to stay. Better than not going away at all I guess. I even used stencil stuff. Couldn't get it to stick for shit. I got pictures of it on my Facebook . (Tim kocevar)