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(Moving this out on its own for better visibility. List also available at https://www.facebook.com/notes/mike-hungerford/things-that-fit-and-dont-quite-fit-in-my-sherpa/10152705808467101)

Updated 2015-06-04

I've been tinkering with what will and won't fit into a Sherpa. Some of the following was gleaned from the sparse information posted elsewhere; the entries with annotations ( - whatever ) are the results of my own tests.

Amsterdam Skylark II porous point - about 1/8 inch too long
Avant Style (Staples) - about 3/8 inch too long
Beifa Free Ink Pen - about 1/8 inch too long
Bic Crystal ballpoint - about 3/4 inch too long
Bic highlighter - about 1/8 inch too long
Bic Triumph 537R - perfect
Dollar 717 Qalam piston-fill fountain pen - needs a boost to fit barrel
Dollar 717i piston-fill fountain pen - needs a boost to fit barrel
Guanleming 2001 fountain pen - perfect
Hero 360 fountain pen - needs a boost to fit barrel
J. Herbin refillable rollerball - needs a big boost to fit barrel
Lyra Calypso rollerball - perfect
Monteverde Stilosfera Prototype - needs a boost to fit barrel
Morning Glory Mach 3 - about 1/4 inch too long - removing the end plug from the barrel lets it fit perfectly
Noodler's Creaper rollerball - needs a boost to fit barrel
Office Depot Ultra Fine rollerball - just a hair too long, but works
Paper Mate Flair - about 1/4 inch too long
Paper Mate Liquid Expresso (trimmed)
Paper Mate Liquid Flair (trimmed)
Paper Mate Metal Roller Micro - perfect
Parker Frontier rollerball - perfect
Parker Vector rollerball - needs a boost to fit barrel
Pentech Aero 0.5 - needs a very small boost to fit barrel
Pentel EnerGel BLN15-A and BL17-A - about 1/8 inch too long
Pentel Hybrid Gel Grip DX - about 3/8 inch too long
Pentel Rolling Writer - about 1/4 inch too long
Pentel RSVP ballpoint - about 1 inch too long
Pentel Sliccie 04 - perfect
Pentel Sunburst Metallic - about 1 inch too long
Pentel Tradio Stylo/Pulaman refill cartridge - perfect
Pilot G-Tec-C4 - perfect
Pilot G-Tec refill
Pilot Hi-Tec-C - perfect
Pilot Hi-Tecpoint V5 Cartridge System - just a hair too long, but works
Pilot Juice Gel Ink Pen - needs a 3/8" boost to fit the barrel, using the Juice pen's refill, spring, and barrel
Pilot Metropolitan rollerball - about 1/4 inch too long
Pilot Multiball - about 1/2 inch too long
Pilot P-500
Pilot P-700
Pilot Precise Grip - about 1/16 inch too long, but will work
Pilot Precise V5/V7 - almost perfect, a tight fit. Pen tends to dribble ink from the tip if not carried tip-up.
Pilot V Razor
Pilot V-Ball Extra Fine - needs a boost to fit barrel
Pilot V-Ball Grip
Pilot Varsity fountain pen - needs a boost to fit barrel
Platinum Preppy fountain pen - fits, nib may get stuck
Platinum Preppy marker - perfect
Platinum Preppy Noodler's eyedropper rollerball conversion - perfect
Reform 1745 fountain pen - needs a boost to fit barrel
Sharpie Accent Liquid Highlighter
Sharpie Fine Point Permanent Marker
Sharpie Pen - fits barrel, won't cap
Sheaffer VFM rollerball - needs a boost to fit barrel
Sherpa Fountain Pen
Sherpa Roller Ball Pen
Stabilo Bionic Worker - not a chance
Staedtler Liquid Point
uni-ball Deluxe
uni-ball Eye
uni-ball Fine - about 3/8 inch too long
uni-ball JetStrem - about 1/4 inch too long
uni-ball Micro - perfect
uni-ball Onyx - about 1/2 inch too long
uni-ball Signo UM-153 - about 1/2 inch too long
uni-ball Vision
uni-ball Vision Elite - perfect
uni-ball Vision Needle
Yasutomo Liquid Stylist
Zebra R-301 rollerball - needs a boost to fit the barrel
Zebra V-301 fountain pen - needs a boost to fit the barrel

"Needs a boost" means that the pen is too short to fit securely in the Sherpa's barrel, but can be "boosted" with a piece of filler material in the barrel.

Some of the "too long" pens could potentially be shortened to fit.

Other than the Preppy, all the fountain pens listed fit nicely into the Sherpa's section; the Preppy's nib fits through the opening, but drags a little on the sides.

I found several other unmarked Chinese and Indian fountain pens in my collection that also fit the section, generally those with hooded nibs. Most need boosting.

http://www.sherpapen.com/

-- Edited by Chthulhu on Thursday 4th of June 2015 04:12:09 PM