Here's a story that's pretty much neither here nor there.

The sprockets on Shimano's higher-end cassettes have aluminum spacers, and
when I install these onto the freehub body, my rule is to
align the marking on the spacer (9S, 10S, 11S, etc.) to the left of
the single narrow spline (when viewed from above).
（Of course, no matter how you install it, it doesn't affect performance）

With this marking, the phase used to be all over the place relative to
the spacer spline on 9S and 10S cassettes,
but starting with 11S, it's changed so that it aligns in the same position.

It's a small thing, but it feels nice.

When installing a sprocket, I suspect very few people face the non-freehub side of the rear wheel,
and based on that reasoning, I used to install
the spacer so the marking could be read from the freehub side.


However, starting with the CS-7700 9-speed cassette when spider arms
were first introduced, the marking on the spider arm
is in this orientation, so
the official view presented by the parts themselves (to put it grandly)
indicates this direction.


So lately I've been setting it up like this.