I am very fond of JNats too, and have often deliberately re-created this situation with perfectly flat stones, holding the stone in one hand and tilting. Like you, I find it very useful for water/slurry management. But there is also a tendency for the stone to engage the edge more when it is moving "uphill" on the stone. It's an alternative or supplement to the trick of slightly applying torque to emphasize bevel contact over honing guide contact.Long story short, the Jnat is back in my good books (for touch ups). I’ve even come to like the slight side to side slope of the stone. This used to bug me but I come to see it as an advantage. Using the stone with the slope falling into the blade, it holds water and slurry beautifully. Using it with the fall away from the blade it useful for diluting slurry in the final stages.