Tried your test, and sure enough it is not lined up in 2nd to high gear. In fact, 8 clicks instead of 9 on the shifter pretty much perfectly traverses all 10 cogs. I decided to take a closer look at the box on the cassette and noticed it has the Dynasys logo, and says HG-X. I'm wondering now if I'm an idiot and just bought an incompatible cassette. The cassette model is CS-HG50-10.