Hi, the manual says "ONLY use the dials in the static "SHAPE" group for character creation! NEVER the dynamic morphs in any group above the "General" group (which is, as we remember, the divider between dynamic and static morphs!)
ONLY set your BODY shape in the BODY actor, and your Head shape in the Head actor!"
but there is a head scaling dial in the body., I have increased x scale in my character's head a little. should i do that in using the body dial or the head?
Love esther

This probably goes back to V4 or earlier, but time was when you changed scale on the head that would NOT change eyes and upper and lower jaws-you had to scale those separately to match. Whereas, when the head sizing showed up-was Sasha first?-in the body, everything worked together. So that's what I've used ever since, but since Karina says use the head to scale the head I will check that out again. It would be a click or two easier.
I do find the default head on most characters a tad too small, maybe 3% on average. It's like they said of pornography, you know it when you see it.

some face expression poses do unfortunately rescale heads.
Anyway, thanks - I will definitely do that.
Love esther

All my characters have heads scaled up by 5-10% (for a more stylized look), and it does drive me nuts when a character or pose file resets the head scale. (Haven't yet had it happen with an expression file, but I don't use those very often.)

But here's a fairly easy fix. Once you set up your character, "memorize" it (look under the Edit menu for the Memorize sub-menu). That will make the little dots disappear next to all the dials you used to set up the character, including the HeadSize dial.

Now, when you apply a Pose or Expression file, you can see if it changed any of your character's defaults because a little dot will appear to the left of the dial name. On a Mac, you can hold down Option and single-click on the dial to restore it to your "memorized" default.

Then, if you'd like, you can save a new version of the pose or expression to the library, this time using the drop-down menus to select which dials should be included (and thus excluding the HeadSize dial).