I get very high reading with this Elos kit way above what I think is possible. Results are 15 x 50=750 and 10 x 10=100 for a total of 850. Another test kit I had checked at 560 seems to be more accurate. That test kit was a Nutrafin. Even the instructions in the Elos kit don't seem right "8 x 50= 450 and 5 x 10=50 Total 425" To me the total should be 500. Any one have similar problems with this kit or am I doing something wrong?