I would actually start by going to edit existing character, and choosing the mannequin from the samples project and rig your character making any adjustments to that file. That mannequin file is the exact same mesh that ships with 4.8, so that’d be where I’d start. You can also open that file, go back to edit placement, and save out a template from there too, that way in a new scene, you can just load a template to get the placement the same as the new mannequin. I can’t really change the defaults now, as it would break everyone’s previous characters, as if they ever went back to settings, then went forward to placement, it would load in the new jointMover file, and their values would no longer be valid and they would have to redo placement. No good.