U already paid the money n u worry only now? Wht raises yr suspicion? Check up eBay, it seems there are many similar ones for sale all calling 'limited edition'. Hey, I am not insinuating anything here. Btw, the S2 position seems a bit odd, US200 racket, you would think Li Ning would care to centre the S2 underneath it's logo, wouldn't you?
if you are not sure, don't buy that's easy for me, I'm not sure if it's real or not the bag looks good, but the S2 looks too big and a little bit dodgy
Serial doesn't mean anything. Not on rackets fr Li Ning anyway. Lots of stolen serials. Check out the font on the S2 sticker. Also, is the bag exclusively made for this N90. Lots of fake goods often comes in "package". If u r willing to pay US200 for a used one, u may as well go buy a new one from a proper shop.
Have you checked the code on the included cardboard when scraping the surface of and entered it on Li-Nings validation site? http://www.badmintoncentral.com/forums/showthread.php/75225-Li-Ning-Rackets-Fan-Club-)/page50 /T
Where you buy it ??? Sunlight wont responsible for warranty because no their hologram sticker on the warranty card. But not sure is ori or not.
From your pictures, I think this one is fake. The bag, the stencil and the instruction for stringing are not the one come with this N90 racket (They are for the N series II version made in 2011). The logo on the butt cap look fake (out of proportion) and those white line look like printed on to similar carbon fiber. Because the real one is make with woven carbon fiber, when looking directly on it, you can see like 3D structure (like holographic) from the woven fiber. Here are butt caps from my rackets.
I think the white lines are from the camera's flash, but you're right, the logo and sticker look big.
When I said those white line are painted because they look the same from the top to bottom and from left to right. The white line and black look so flat, has not deep field.