sucking at sharpening = convex edge?

[res1cue]

So I know about nothing about convex edges, but I was thinking about it, and lets say you are trying to put a 40 degree inclusive edge on a blade with a benchstone

so you angle the blade at 20 degrees and start going at it

but lets say you aren't very good at it, and sometimes your angle gets kinda off, lets say a couple degrees either way, lets say about 17 degrees sometimes, 23 degrees sometimes, but mostly inbetween those

wouldn't that result in a convex edge? the <20 degree strokes would round the shoulders out a bit, and the >20 degree strokes would round out the edge a bit, and the end result would be more or less a convex edge?

common sense tells me this is not the case, but if someone can explain that to me, that would help alot.

 

[dsmegst]

You would get a rough approximation of a convex edge. There's going to be a lot of small flat surfaces in your convex curve instead of a smooth curved surface. I think that will nullify one of the advantages of a convex edge. The smooth curved surface reduces drag that gets created by multiple flat edges.