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Some 1k wet/dry sandpaper will also set a bevel. There probably are people on the forum that just use sandpaper and film and hone razors very successfully

The Norton flattening hone usually isn't flat and it is fairly soft and wear quickly and don't use them with any hard natural stone, I learned the hard way doing that and wore a groove in mine

Some low grit wet/dry sandpaper will handle flattening the flattening stone as long as you use it on a flat surface