If you look at the grit you might go 1000, 2000, 4000, 8000

That corresponds (roughly) in microns to 17, 8, 3, 1.

If you take the 8 (2K) out of there, you could make the argument that jumping from 17 to 3 looks pretty big when the next step goes from 3 to 1.

It makes a case that many of us take a pretty big jump (in terms of particle size) in the early part of the progression.

It also gives me an excuse to buy the Chocera 2K.