Shapton Pro 120 is more and clogs fast. SP 220 is too friable/muddy. SP 320 is OK.

Norton Crystolon JB8 for 24$. https://smile.amazon.com/Norton-Crystolon-Combination-Oilstone-Coarse/dp/B0001MSA5Y

JB8 25$ https://www.sharpeningsupplies.com/Norton-Combination-Crystolon-Stone-P179.aspx