Wing has some mayor issues, which is that the rear screw mount is a sunk one which reduces the amount of plastic holding the rear wing, which has broken on 2 rear wings I that got.
Other big problem is that this wing is so wide that if you're not careful with clearance, it will flex (2mm to 4mm) and cut your rear tire, which happened to me during an A main race. Basically it rubbed so much that it even melted on one side, and my car was 190mm wide with 2mm clearance on both sides of the wing to the tires.