Now that I spent it all on BBB stones, need to sell some stuff. This is a finisher for me, I think it's in the ~5k range but Cris would say it has more variation depending on pressure. Keeps a refined toothy edge. Either way, it's really a great stone especially for the price and works well on all the steel types I've used. I've flattened it with my Atoma and it's dead flat on both side now, nicely rounded edges. Details from Cris' website below.
https://cjaedgedart.com/product/scorpion-forge-hard-natural-waterstone-large/$75 CONUS (about half price) or $110 int'l.
https://cjaedgedart.com/product/scorpion-forge-hard-natural-waterstone-large/$75 CONUS (about half price) or $110 int'l.