"Shading" with a Black Ink - Brush Pen

I received a Email with a Question regarding how I draw the Hair with the Multliner Brush Pens from Copic. Here´s a simple Trick that I use constantly when I do my Live Caricatures: I remove the Ink Cartdridge to draw with a "Dry-Brush-Technique". You get more Control over Details and with more pressure you can draw very fast light Hair, Clothes, etc.