Ok I just wanted to clarify, I have some CrOx from SRD in a bar form. What do guys think would be the best surface to aply it too on the SRD modular paddle. I'm using one felt piece for diamond spray .5 and I still have 1 virgin felt, 2 rough leather, 1 bridle leather, and 2 premium leather. I was wondering if it would work ok on the scrub leather and if so what is the best way to apply it when it comes in that format. Do you just rub it on directly like a crayon? I like the sound of the method used on the Japanese Knife Sharpening blog but there he has it in a powdered form. Or am I completely missing the whole oat on its usage. The crayon (that's what I'll call it) seems like it would work well on the Livi loom or on a canvas strop but I'm interested specifically if it is an ok option for one of the SDR modular pieces or if I should just wait and get some powder form?