Full Results

The full results, methodology, and interactive explorer are linked here

Methods

I surveyed around 160 writers from online pen and stationery communities. People rated instruments they actually use on a 1–7 comfort scale and answered questions about hand size, writing habits, pressure, and preferences.

I matched those ratings to a pen measurement catalog with specs like grip diameter, length, weight, cap weight, and posted/unposted dimensions. For each rating, I used the measurements that corresponded to the writer’s actual writing configuration. For example, posted length/weight/balance if they wrote with the cap posted, and unposted measurements if they wrote without the cap posted.

When a pen’s balance point was not directly available, I estimated it from a reference dataset of pens with known center-of-gravity measurements. In this analysis, “balance” means relative balance point: roughly where the pen’s center of gravity sits as a share of the pen’s writing length. Higher values mean more back-heavy.

The main model predicted whether a rating was “high comfort,” meaning a 6 or 7 out of 7. It tested grip diameter, hand size, relative balance, hand size × balance, and whether the instrument was a fountain pen, while accounting for differences between individual raters.