I have finally gotten my HAD under control since my Escher and Jnat arrived on the same day. Recently a slight tickle has returned to buy a second Jnat. I am buying from JNS and will reference his hardness/fineness scale. I currently have a level 5 and would like to purchase a 5+ but wonder how different will the final edge be? Is it stark or very slight change? One of the lures for me is using one stone for Tomo slurry on the other. Also, my current stone is a size-able Koppa; but a full size stone would a fun addition. What do you guys think?