That's a bad screenshot, it's no commercial that you can paint an ugly white line on a model, and thereby ruin it. I got a mav after setting one of the sliders to full, I don't think any modeller can live with the way the brush sometimes shapes, try making it paint everything inside a sphere.
Don't give up, but as it is now, it's not worth the money.
Don't give up, but as it is now, it's not worth the money.