What is special about this pen that can have any type of ink compared to another ebonite pen? I do not speak English well and in Nathan's videos I understand very little. My shipment is also on the way.
When you close the pen the nib retracts into the barrel, so it is bathed in ink, not in contact with air. Thus the inks which would normally dry out, clog the feed, and/or corrode the nib, won't.