Never knew those three were south-paws! That's cool.
To answer your question, when I was in school I gravitated toward technical pens loaded with inks designed for drafting. I've still got a set of Koh-I-Noor pens with some ink still left in the original bottle. The ink dries incredibly quickly, and once dried, is pretty impervious. For drafting, technical illustration, or inking pencil drawings, it means you can erase the pencil lines after inking without smudging anything. For a leftie like me, it means by the time my hand drags over the ink, everything is already dry so nothing smudges.
But they're not without their problems. I live at 2,500' above sea level, but routinely work at 14,000'. The pressure change is enough to make these pens dump ink everywhere. The same thing happens if you take them on an airplane without emptying and cleaning them first. These days I mostly use whatever pen I have in my bag, and smudge away. :/