At the moment I only have standard 146 pens (including Writers editions) but would love to know from users of both types which they prefer for regular, every day writing.

When I say "every day writing" I don't mean taking a long time to practice calligraphy in a journal, but every day letter writing or scribbling out a few quick notes when you test an ink for the first time. The sort of writing you might do when you don't really need to take your time to specifically write calligraphy letters.