ThumperIII· Premium Member
No, all the XDs and XDms work the same way. The weight of the striker spring is compressed and fully latched behind the sear by the slide opening to chamber a round. This happens when the slide is opened either manually or as a result of a fired round. This occurs during the first .5 inch (or less) of slide opening from battery. You cannot load a cartridge into the chamber without 'cocking' the striker. From there, the striker is always set until fired. Because of how the sear slightly cams as it moves on the pivot pin to release the striker, there is some minor movement of the striker during the trigger pull. This is not like the glock design where part of completing the striker stroke and spring compression is dependent on the trigger pull.