Pilot's description of the Elabo's (or Falcon's) nib

In contrast to the FA nib, which is designed to be used with only light hand pressure — irrespective of whether that produces sufficient line variation to satisfy the individual user — the Elabo's (or Falcon's) nib is designed to withstand heavier hand pressure in writing.

Source page:

https://www.pilot.co.jp/promotion/library/014