My cassette turned up the other day and was duly fitted in anticipation of a weekend ride.
It really is massive! My cassette has a similar diameter to my brake disc. I’ve a brand new set of XT cranks, so it seemed rude not to get it all set up with a brand new chain. I was a little worried about chain length, but even with a 36T front chainring, there’s just enough links to make it work.
Setting up may be a fiddle, the B Tension bolt needed to be fully wound in before the chain would shift into the next biggest sprocket at the back. The setup is noisy, but I expect that’s due to the KMC chain I’m using.