Originally Posted by
eKretz
You can use a Washita with slurry but it's not the best way to use it. I've done extensive trials with both my #1 and Lily White and they will remove steel in a hurry with slurry but there's also pretty heavy apex damage that takes quite some time to get past on subsequent stones. This is viewing at high magnification, you won't see it with the naked eye or a low power loupe, but it's enough damage that it sort of convexes the edge and takes a good while to hone past on midrange stones.
A Chosera 1k is much faster and doesn't do as much damage - I prefer it by far to a Washita with slurry. Natural stones are the way to go for finishing for me, but they don't hold a candle to synthetic bevel setters.