Fountain Pen Flex Vintage & Modern

A close look at 11 pens & how their nibs Flex. How do modern pens compare with Vintage? Pens compared are:

1) Waterman’s Ink View 1936 – Waterman Serenity Blue
2) Stipula Model-T Ambrosia Titanium T-Flex Nib 2012 - Waterman Serenity Blue
3) Noodler’s Ahab - Waterman Serenity Blue
4) Noodler’s Neponset OLDE SALEM 14k Nib - Waterman Serenity Blue
5) Peyton Street Aerometric, Eversharp 14k Fine Flex Nib (Olive Ripple)- Waterman Serenity Blue
6) Waterman’s 55 #7 nib 1925 – R&K Alt Goldgrun
7) Parker Jack-Knife 1915 – Noodler’s Apache Sunset
8) Arthur Waterman 1912 - Waterman Serenity Blue
9) Pilot Custom Heritage 91 Soft medium 14k Nib –Iroshizuku murasaki-shibiku
10) Pilot Custom Heritage 74 Music 14k Nib – Diamine Ancient Copper
11) Conklin Glider 1946 14k Cushon Nib – Iroshizuku yama-budo