I'm very disappointed in the Penn State fountain pens I've received. Not the kits themselve's, but the ink refills and nibs. If you don't constantly use the pens, the nibs dry out, clog, and are essentially useless (to me). Paid good money for an Apollo Infinity fountain pen some time ago and used it maybe 2 or 3 times. I had to completely flush the pen parts under water to make them usable again. Not a week later, the nib was clogged again. Any suggestions to extend the life here?