Welcome to AA!
I'd recommend getting the API master test kit. You'll be much happier, and the results are much more accurate. They are, however, still using color matching to distinguish levels, but it is a much more accurate test.
Are you running a fishless cycle? If you are, and you can tolerate the noise, aim your spraybar more at the surface during your cycle. The extra oxygen is beneficial to speeding your cycle along.
In the DC Metro Area? Check out GWAPA