I lapped the Naniwa 12K and went for a touch-up of my Dovo stainless since it's been tugging a bit.

Tried to make sure the stone was flat and very smooth all over.

As I began making the strokes, the better-shaving side of the blade seemed to do fine. The movement was smooth and it almost felt like the blade was being sucked-down onto the stone; my impression was that this means things were in pretty good shape, and the blade and stone "fit each other" pretty well?

On the other side of the blade, I'd begin a stroke and then after about an inch of travel, it would seem to "catch". I thought maybe there was a bad spot on the stone that only presented in one direction, so I turned the stone around. But still got the same catching. I tried to keep the blade as flat as possible and as little pressure as I could. I ended up doing a lot more strokes than I had intended, trying to "work out" whatever the issue was. Things got better but the "bad" side never did get the same kind of "sucked onto the stone" feel as the other side.

What does this tell me about the blade and/or stone, or my technique? Should I keep going at it with the 12K? Put more strokes onto the bad side, or keep it 1:1? Move down to coarser stones? I was hoping to avoid that this early in the game. I don't see any gross defects and have only been shaving with it maybe 3 times a week for about 4 months, stropping every time and began using chromium oxide/balsa to touch up every half-dozen shaves the last couple months. That really helped a lot in the beginning.

Not sure I understand the "jump". After it jumps it then smooths out for the rest of the stroke. This is the weirdest part to me. It's like: 1 inch of smooth stroke, jump, then 8 inches of smooth stroke.

Shaves a bit better than before, but definitely not as good as when it was new.

Thanks for any insights.