>>3022344382 speed is pretty good for a Choice Scarf set. Lets you spam No Guard Stone Edge with impunity. Brick Break for Steels. That's about it, though. You can give it Taunt, I guess but that would lock you into a non-attacking move, which almost automatically loses you some momentum. Pretty much the only reason you'd use this is for the Choice Scar No Guard Stone Edge, as it's outclassed by midday form at basically everything else. This thing needs Accelerock more than midday.
Given the BST I wish they'd min-maxed this a little more. The higher defenses are really not high enough to offset the huge loss in speed from midday to midnight.