Thanks to the RH Preyda thread, I'm now back to being a stoner- sharpening stones, that is. Browsing their site, I came across this silly idea- hard and soft stones glued together in stripes- so it's not one side hard, one side soft- it's one side is striped with both hard and soft. This makes no sense. The soft will wear faster than the hard, so it's going to divot between the hard stones. Also, you're not finishing with the hard- you're using both. Why is this a thing?
https://rhpreyda.com/product/vulcan-multi-cut-7-layer/