Hapstone RS form-factor is recommended over Hapstone R2

including Tuffite

and hence no reason to limit yourself in this regard

Arkansas stones should be used with one of these lubricants:

multi color kangaroo leather strop for edge pro Aluminum Color:Indigo Hapstone RS form-factor is recommendedKangaroo Leather Strop is an efficient way of final polishing a cutting edge using guided knife sharpeners. A leather strop enhances the cutting edge by correcting small nicks and smoothing grooves. The stropping medium is leather pad made of vegetable tanned kangaroo leather mounted on high quality aluminum with 45 degree bevels (Edge Pro form factor) and color anodizing: graphite gray, black, deep ruby red, ocean blue, emerald green, sepia orange,