Pilot Custom 823 #15 FA vs Custom 742 #10 FA nib

Pilot Custom 823 Demonstrator 14k gold #15 FA nib vs Pilot Custom 742 Dark Red / Burgundy 14k gold #10 FA nib. The best modern flex calligraphy fountain pen nibs on the market. Paper used: Tomoe River Loose Sheet 52gsm Instagram:   / owlxart   Details: (00:00) Mechanism: (02:35) #15 Regular Writing: (02:44) #10 Regular Writing: (04:54) #15 Expressive Writing: (06:50) #10 Expressive Writing: (07:52) Pros & Cons: (08:56) #PilotCustom823 #Flexnib #Calligraphy