Clearly when using a pen, it is ideal that the ink dries when you are done writing. Something about it not smearing and remaining ledgeble as I recall.
However, I live in Las Vegas. Currently it is around 105F outside, and while that's not the same case in the winter time, one thing that is missing here is humidity. It's so dry that on a hot day you can pour a glass of water and watch it drink itself.
Assuming I keep the lids properly tightened and all, should I expect any difference in shelf life of certain inks? Does super low humidity affect performance in a way that someone new like myself should watch for?
(for reference: these things come to mind because I've worked with painting metal with an airbrush, and the dryness and heat greatly affect what additives should and shouldn't be used with a given paint type)
Also, are there any paint types that are recommended over others for people who prefer to write slower? Are inks measured for viscosity at all?
(this would be ink used in an oblique pen with G nibs)