54mm
I use the loosest settings but it's still incredibly stable due to the magnet core. out of the box it had a "crisp" turning feel, with a sheering feeling similar to water-based adult lube. after the factory lube dried, I added Lunar and Stardust and it doesn't have the sheering texture anymore. It's not particularly *fast*, but it's very comfortable.
the 54mm is nice to turn casually, though does get caught on my own fingers when doing algs
I like that there pre-defined "****" settings, it means it's always consistent. I don't mind the lack of compression adjustment because I don't like the feeling of compression