Goal today: replace a worn 11-speed cassette on my commuter and measure chain stretch while the wheel was off — two tasks I'd been deferring for a couple of weekends.
The Park Tool CC-3.2 read 0.75, Shimano's replacement threshold. I hadn't checked in roughly 800 km and it showed. Pulled the cassette with a Shimano lockring tool and a 12-inch adjustable; no chain whip needed since the freehub pawls held. Steps:
Removed the rear wheel, seated it in the work stand.