I'm looking to step into the world of honing and currently I'm looking at buying the Norton 4k/8k, Naniwa superstone 12k, balsa bench hone with Chromium Oxide and the Norton flattening stone. What do you think? Also, the Norton flattening stone is meant to be used on the Norton 4k/8k, but could it also be used on the Naniwa 12k or do I need another one? Thanks guys!