Thrilled!!!!! Always wanted to do LARGE Copperplate, and this pen does it!!! Cannot put the pen down!!! The ink flows continuously, no dips into inkwells. By slight manipulation of pen, can get beautiful hairlines! So much fun!! Do not need any of the smaller curved nib sizes. The 6mm does it all. Hope to see Youtube demos by copperplate calligraphers as the word spreads about this superb pen. Thank you, John Neal!!!