I'm mostly using a Super5 fountain pen, about on par with a Lamy Safari, with Monteverde blue-black ink. Totally agree on the writing experience... a fountain pen just feels so much better than any ball-type or felt-type pen. So my EDC is just the Super5 and a Uni-Ball Jetstream (mostly for receipts), but I really should carry another pen as a sacrificial "Hey, do you have a pen I can borrow?"