this question has probably been asked many times,but here goes,my daughter got me a freestyle insulinx monitor,and I already had a bayer contour usb monitor,now me being me wanted to see if both the meters showed the same reading as each other,so did blood test from same site using same blood the freestyle gave a 7.1 reading the bayer gave 9.4 which one do I believe carried out test control on the bayer contour and the reading was 7.1 with in its spec any ideas