All This Talk About Sensitivity...

...and still no one has bothered to simply ask: how many inches per 360° turn?

Well, now I'm asking the community, namely the pros what you prefer/use.

I posted this here because I was shocked to discover last night that Tundra used a ridiculously higher sensitivity than me (ie. ~4.5 inches per 360 as opposed to my ~28 inches per 360). I thought it was just me taking such a long break from kz (2 years or so) before coming back, but no wonder I can barely hit 252 stats anymore.