Uncap the Plaisir though and it becomes a glorified Preppy. Yes, here is Preppy’s clear plastic section and here too is Preppy’s nib which matches the colour of the pen. Having inserted the cartridge the pen came with, it took more than a day for the Plaisir to acquire a satisfactory ink flow, being quite dry and skipping before that. Afterwards it continued to write consistently but its ink flow left something to be desired, though it improves considerably during use. It has been mentioned elsewhere that the Platinum uses proprietary cartridges, but Palimpsest found a no-name cartridge fitted just fine. The cap has been fitted on the inside with a special plastic seal which prevents the ink from drying - a common problem with fountain pens when left unused for some time.