Hi Neils, I measure max insertion at 250mm. That’s from the base of the cable actuator to bottom-out point where the post main seal head contacts my frame.
My Stealth routing exits below that but on some frames the cable exit may make the max number longer depending on what the cable has to do to escape. I know if multiple cases of people drilling lower Stealth exit holes in Stealth compatible frames for this reason.
The minimum extension (post bottomed in frame / seal head to center of saddle rails is ~210mm. That’s of course with the post up all the way.
Overall height from bottom of actuator to center of seat rails is ~460mm.