IMHO i always tell people to do a mob that sets the femur head back in the socket after couch stretch.  i don’t have evidence that this is necessary, but it’s more intuition since our femur heads tend to be biased forwards any ways that putting in back as the last thing you do during mobs is a good thing overall, whether before or after workout, or just mob-ing during the day. so any moves that bias your femur heads to the front may be necessary for the mob itself, but generally i think it’s good for the 21st century population to put it towards the back whenever possible (or more than likely re-centering is what occurs when you put it “towards the back”).