At 1000 grit and 20°, you should shave very easily and should be shredding paper without effort. Since you’ve verified through the formation of burrs on both sides that the bevels meet, the only remaining issue is edge refinement. Depending on how new your system is, the stones may not be broken in yet and will be giving a toothier edge while they break in. If you have strops, they’ll immediately refine the edge so that it slashes paper easily. Otherwise, do a couple more knives and then come back to the first one and go again with the 800/1000 grit stones. Alternately, you could just spend a little more time with those stones on that knife and let them break in while perfecting the edge.
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