Ye I agree that it isn't enough tests to determine if your contour is inaccurate. There are so many factors involved when it comes to meter accuracy that really it depends on the positioning of the moon and other things.
Even then you forgot your meter has a 20% inaccuracy, other reasons for inaccuracy can be what you washed your hands with, which finger you used, how much blood you got out and how much your meter actually picked up etc. This is not an exact science unfortunately if you search on these forums you will find out the price you would pay for 100% accurate testing. It involves a huge brick and fcking expensive test strips with a wait of like a minute or more.
