I actually like those fixtures with sag lens over drop lens for this type of GE.......those seems to look best in sag lens.....as the drop lens one make it look too AEL-y style......so sorry, I like the GE M-400A3 in sags, but the GE M-400A2 are great the way they are with drop lens....
At least that M400 sag lens is a merc you can see the coated lamp through the clear lens. Beautiful at night. Seen many mercury fcos and sag lens here.