Same here, tested a lot of -8 , but not the -10 , but from the hip I would not think that there would be a real lot of difference with just a couple more points of carbon?
Just for a think? If you have ever used blades out of 440B and 440C , your going to have a real good idea.
All AUS-8 and AUS-10 really are is 440B and 440C with a frog-hair of vanadium in it, and a little nickle to take the place of a little less chromium.
My guess, again from the hip, depending on the heat-treat, the -10 should out cut he -8 by a very slight margin, and be just slightly harder to sharpen in the field.
And again, depending on the heat-treat, be slightly easier to chip if meet with a boo-boo?
Both -8 and -10 might have a slightly better ware resistance, and slightly more brittle them 440B & C .