That is the pen that I have always used and what I am using now. The tip has never gone $hitty so quickly on me before...that's why there are mistakes on the left side. This will be the 4th valk that I have panel lined with this kind of pen. I like them....I was just super pissed when the tip "broke" and fu(ked up my PL job. Once I get a new pen I will finish it and it will look "cartoony" just the way I wanted it to. The other valks that I have PLed with this pen were a 1/48 1A Cannon Fodder, 1/48 1J Super Stealth and a 1/55 Bandai Roy Focker. If I cannot find a Gundam marker I will either try out what Ghost Killer has suggested or just stick to the Pigma Micron. And you are very correct. The smudges are ALOT harder to get off that one would think. I may have to try to make them look like some sort of weathering.
EDIT-----> I forgot......I was looking for something smaller than the current Pigma Micron 005 which is .20MM I would like to find a .15MM or smaller even. Do you know where to get a smaller one? I have searched high and low and have found not one.