All the Hannibalitos have the Cutlet exhaust hole system

This isnt more than a 1.5mm to 2mm hole in the ram to vent. As soon the Burkert closes the ram loses pressure, and the bungees retract the rod and arm seperatly.

Disadvantages, you lose about 5 kg of force, and a bit of gas as long you keep the Burkert open.
Buffertank about mandatory, as a bottlevalve wont have a much larger flow than the exhaust hole.

Advantages.
Cheaper
Lighter
Less space needed.