[quote=@Unfortunately]
Well, never heard of a signpen before.

Now i'm going to buy one. Especially noting that my ballpens have difficulties tracing often as if they were running out of ink when their cartridges are still damn full.
[/quote]

Make sure it talks about the pen being fiber-tipped and having water-like ink in them (NOT like the ball pen ink). Sign Pens sort of feel like actual brushes, and despite its name, its part of one of the many tools artists tend to use for lineart tracing before shoving said lineart into the computer.