I saw the Copic Multiliner SP Brush (BS) at Wizard Chicago and instantly fell in love. Well, as much in love as you can fall with a pen.
In my limited experience with brush pens, I've found that the tips give out way too quickly. They start flexing too much and I lose control of my line widths. I'll admit to having a heavy hand, but I need a strong, resilient tip with some resistance when I work on an illustration. This new pen produces velvet-soft strokes of 0.2 to 5mm, has refillable ink cartridges, a replaceable tip, and comes in a sturdy aluminum casing.
Let's see what magic we can make.