While creating faces, one of the big steps is to mirror. Usually by this time i already have subsurfed the mesh, i would like to be able to stitch the subsurf while keeping the mirror editable. Is there anyway to do this. I haven’t looked anywhere else, i dont even know what term to use for this.

The mirror modifier must be first in order to work correctly. Click the arrow on the modifier to make it first. Or maybe what you’re looking for is the Merge level?

switching order worked. duh… thanks.