Yes, these two pens have benefited from my work in recent days, extra ink flow has been also modified in the feeds to make these pens mimic vintage needlepoint wet noodle flex! A Pilot Custom 912 with that 14k FA nib and a Pilot with the same treatment.
Nice results, thin hairlines and flex galore!
Have a pen you want modified to do this? Email me at firstname.lastname@example.org for details!