What are you guys stropping with?
I suspect that the most important part here
is that the bevel is well set and then the
light touch honing finishes things.
Garnets in BBW are fragile enough to get knocked
down almost flat where they then cut as if
they were a lot finer then measurements might
indicate.
This is the magic of naturals.
As for slurry try half a pea size dot of
white tooth paste and dilute that down
bit by bit. Works wonders on barber hones.