I’ve found my VP (which I like a lot though) dries up very quickly. I recently got a Lamy Dialog and it behaves way better (and even though it looks bulky it is a joy to use). For more “casual” (throw-in-the-bag) I really dig the plasticky Pelican Twists (they feel extremely comfortable, I have 3 or 4) and a trusty Kaweco Liliput in brass I always carry on my backpack.