I like convex edges a lot too. If you free hand sharpen, you eventually end up with a convex edge as you never get the angle exactly the same time after time.
Another way to convex sharpen involves wet/dry sandpaper and a resilient backing. Leather, as for a strop is quite popular, but you can do well with a pine board , some cardboard laid on a table or a FIRM mouse pad.
Lay the sandpaper on top of the resilient surface. I usually use a mouse pad, but it takes a finer touch to work well. Some like to clip it on but I can hold a sandpaper edge with my free hand.
Then you merely strop along the sanpaper using about 2/3 to 1/2 the angle you would normally, edge trailing. Use light pressure. The surface conforms to the shape of the blade, rounding the shoulder of the edge grind and tapering the edge itself. If you use too much pressure on a soft surface, you'll actually dull the blade.
Work to ever higher grades of wet dry sand paper for finer sharper edges. Don't let the knife get as dull as you would normally before sharpening, but strop it back to popping sharp occasionally on some fine sandpaper or even cardboard or charged leather.
You can charge the leather with a variety of specialty grit compounds available from places such as http://www.leevalley.com/wood/page.a...&cat=1&p=43072
, but you can also use various metal polishes such as Flitz that's more commonly available. But you might have to go to a sports store with a gun cleaning supply aisle...
Bark River Knife and Tool is planning a kitchen knife set of fully convexed blades available in 12c27 or n690co stainless or A2 carbon steel with your choice of handle material. Not just the edges, but the whole blade. The drawings currently look like this: