I absolutely SUCK at sharpening a convex edge.....and because of that, pretty much all of my knives are flat secondary bevel types.
Just never put much time on convex edges...or scandi.
You have to use a leather strop loaded with compound. It's a totally different approach to maintaining an edge vs hollow grind or secondary bevel. It's about pulling the blade in the opposite direction from the edge.
Easiest way I’ve found to maintain a convex ground blade is to take a neoprene computer mouse pad and cover it with 1200-1500 grit wet/dry sandpaper. As you strop the blade across the pad put just enough pressure on it that the rubber mouse pad conforms to the convex contour of the blade…it only takes a very little amount of pressure….easy peasy.😊 Makes sharpening a convex grind very simple and no messy compounds to deal with. Knives sharpened this way are scary sharp!
I’ve never used a sharper knife than a convex grind!
Having said that, I own both hollow and flat grind knives as well. Got a dandy flat grind that Michiganroadkill made up for me a couple years ago…it’ll be on my belt this Oct hunting mulies/elk in Utah(pic below).😁