Love the smaller mm!

The 1.0mm is my favorite for thick, bold writing

I have been using the pilot G2 .05mm for years and loved them but just recently made the switch to .38, to my delight they are even better

The 0.5mm and the 0.38mm are awesome for very small and still legible writing (like in a Moleskine notebook at 1/16" tall letters)

.38mm is awesome for precision writing, drawing, plotting when you need a pen with a degree of fine for a freshly sharpened pencil tip, but it’s not nearly as good for general usage

However, as nice as these are, I still prefer the Pentel EnerGel-X Retractable Liquid Gel Pen 0.5mm, Needle Tip, Assorted Ink (3 Pack) (BLN105BP3M

The 0.38 mm works great for any sort of small or precise writing

So Pilot G2 pens are my only choice, usually the 0.5mm (extra fine point), but I keep the 0.7 (fine point) and the 0.38 (ultra fine point) available too

I love the G2 0.5mm, but I wanted something more precise, so i went with these

The .38mm are good for cramming lots of notes into something, they seem to get used the most.

The problem is that they don't feel as smooth as the 0.5mm when I write

I personally really enjoy using the finer 0.38mm ones for my notebooks

The 0.38 mm works great for any sort of small or precise writing

These pens are the "fine" point (0.7mm AKA G2-07) and they are my favorite for all-around usage

I love the Pilot G2 Ultra Fine (0.38 mm) point

These write as smooth as any other G2, but give you a level of precision you won't get from even the normal fine point (0.5 mm)

Therefore, these 0.38 mm is perfect for my son hand writing.

I write pretty small, and the extra fine (0.5mm) and ultra fine (0.38mm) are perfect for me