I'm still smiling today. In my pocket is my venerable Monteverde engage ink ball with Monteverde midnight black ink. Brought home from work to fix the broken off knock. On looking inside the plastic was all busted up. Well after some measuring I found that the Zebra 'z' grip knock fits and works better than the original. So today I'm carrying a monteverde-Zebra engage-grip.
Parker Victory Mk 1 - what a fine writing nib. Having used recently a Vacumatic and a Pelican 120 this nib is very easy to write with, soft and with the ink flowing perfectly.