I went to Best Buy and purchased what I was told was a glass protector for SPro 7 but the camera and mic cutouts did not match. I found out the protector was for SP 4. Although the screen is the same size, the cutouts for the SP 7 are different. I have searched all over, including contacting Microsoft and cannot find a verifiable glass screen protector specifically for the SP7 screen with the proper cutouts. Has anyone purchased one. If so, which one?