Just went with SWG so I bought a Taylor TF-100 test kit and it came with a K-1000 kit just for quick chlorine & ph testing. The chlorine test has colors to match for .5, 1, 2, 3, 5 ppm. But I'm puzzled though because the 2 & 3 colors appear to be identical. Some of my friends even think the 2 is yellower than the 3! Did I just get a bad kit or are they all made this way?