One of my favorite papers has been the stuff in Kokuyo Campus notebooks (both grades, 30 pages). Perfect size, and I've been happily using it for years. One day, a Wing Sung 601 filled with Quink Blue started dragging, the ink coming out pale and stingy. I flushed the pen. No difference. It wasn't the pen. Several other pen-ink combos exhibited the same problems: stingy ink flow. I have been using that (and other KC) notebooks with pencil for things like shopping and to-do lists. But I have also recently noticed similar problems with some Clairefontaine and Rhodia papers! As though the coating itself was somehow clogging the tines of the pen. Anyone else have this problem?