I'm going to second what SJ said. I tried the bulky SD set, and it was underwhelming compared to the bander. You need SD, Roost and Bullet Punch, and you're too easily walled/stopped regardless of either coverage move.
Also, I'd like to see Roost mentioned in the Additional Comments of the Band set, in the last slot. Like Specs Latios, Scizor is sometimes dealt with by relying on residual damage to wear it down, then KO it with a light hit, maybe from a wall. Entry hazards are especially troublesome for Sciz, and an unexpected Roost can be an extremely jarring maneuver for the opponent.