Yes main reason to rest eggs ,is so the air cell return to the large end. So letting them set will help if store large end up. Now you could place them in a incubator large end up, just dont turn the turner on the first day.....
If you ever seen a chick trying to zip around the small end, you will understand Why eggs need store large end up.
Yes I know in nature they are not, but the shape of the egg do make them lay small end DOWN. Keeping the air cell on the large END.
So guess should say store small end down. Reason I ship my eggs small end down.......