Update on Zowie G-SR: It never got flat, tried the iron, the text book, leaving it backrolled in the box, and still nothing, Had to change to my old mouse pad HyperX :
G-SR ゲーミングマウスパッド | ZOWIE Japan
ZOWIE G-SR-SE DEEP BLUE マウスパッド 新品 5枚セット 超安い www.kishi-clinic.jp