Tuning Weihrauch HW100 - strange spring

Just an update...

Weihrauch responded that this is the new setup on up to 50J (37 ft/lbs) HW100, 

Short spring does come behind the valve as a precaution if dry fired with empty or no cylinder,

Unfortunately, this spring is not on any exploded views, not even on a newest one from 10/2021

So this is the right setup

IMG_20220110_234713 1.1642584719.jpg