Yeahh... it's not a true convex bevel, more like several compound bevels blended together, like Jon said. And honestly, it's more about aesthetics than performance
Originally Posted by johndoughy
You can use the same motions and cut the same compound bevel with a hard stone, and you won't notice any difference in performance blindfolded. But it'll look jacked up, like a diamond with irregular facets.
You can definitely put a convex edge on by hand on stones. You actually have no choice if you are freehanding.
As far as the irregular bevels, it's all muscle memory, and though you will still have some faceting going on, stropping will blend them together(one of the reasons I think some amount of stropping is not optional for proper freehanding).