Replying to Using quiver killers to swap between gaurdian and sth2

Sup geartalk, summer heats got me scheming on my upcoming season setup and I'm wondering if anyone has tried this and wanted to chime in. I currently own a pair of sth2s on RMU apostles, and want to get more into touring but not have to be skiing on a clunky pair of AT bindings all the time. I'm wondering if it would be possible to mount guardians with quiver killers and then swap between the sth2 and the guardian for days I'm not skinning? I've seen that there is a 3rd set of screws on the heel lock of the guardian, whereas the sth2 has only 2, but besides that is there any difference between the mount patterns?