OK. So want to go really crazy?? I really don't know what to believe about any testing now. I did a FC test at about midnight last night with the smaller reagent from the Taylor kit and got 18.5 FC 37 drops. Got a fresh sample not long ago and used the new Taylor 2 oz. bottle from the pool store which I purchased yesterday and got a result of 21 FC - 42 drops. Nothing had been added to the pool, so I tested the same water sample with the reagent from the kit and got a result of 17 FC - 34 drops which is what might be expected for a reading. I am probably gonna have to contact Taylor for input, but I compared the drop size on a piece of plastic laying flat on the countertop AND the 2 oz. bottle I just got has a bigger drop size ( both held Vertical) than the one that came in the kit. It took more drops of a bigger drop size to complete the test. Very confused. Anybody had similar things happen?