I've always liked a mixture of both: start out a paper in blue, and finish in black. or visa versa. I think something with the function lineup is responsible for this strange phenomenon. We should totally over analyze this topic.
Is it that by its indefiniteness it shadows forth the heartless voids and immensities of the universe, and thus stabs us from behind with the thought of annihilation, when beholding the white depths of the milky way?
Not an ENFP, but I have a bit of a pen fetish. Purple ink ftw, but my sketchbook and journals have a good mixture. I like to do each day in a different color. Some times the color matches my mood or the clothes I'm wearing or what I ate for breakfast, but other times it's just random and fun.
Due to the over active Ne glands an enfp will be unable to stay with a single pen type. Sometimes, but not always, enough to draw a simple availability heuristic from anyway, the supporting and cheer leading Fi cognitive process will lead to over attachment to a single pen.
Often healthy enfp will be found with glittery pens dangling from their necks.
Ok, I'm pokin' my infj nose in here 'cause I feel very strongly about this. The ink must be black and the pen nib? must be a medium point. I hate fine, cause it's not smooth and makes my penmenship look yucky and black 'cause blue's... just blue. Not strong enough of a statement or somethin'.
/spamming an enfp thread with my unappreciated opine.
"In the depth of winter, I finally learned that within me there lay one invincible summer."
A Christian's life may be the only Bible some people ever read.
"The first time someone shows you who they are, believe them" Maya Angelou.
I like your Christ. I do not like your Christians. Your Christians are so unlike your Christ" Gandhi