what are the beye and bmou fsh files for?

[rockshox1985]

they look like an eye and teeth thing to me..
is it important when making your own cyberface?

i made a cyberface for a player i created and i just used tmac's headshape, it looks good but when he opens his mouth sometimes, the lips and teeth kinda misalign

are the beye and bmou fshs used to correct that?

[Tuomas]

yup those are mouth and eye files and not necessary to edit when making cyberfaces.