As I said earlier, it looks like you are close, the bevel looks flat and all but a few errant stria have been removed.
So, before you start jumping through hoops, buying a whole new honing system, and re-hone the razor from scratch, try adding a Micro Bevel.
Put one layer of electrical tape on the spine, lightly joint the edge, dragging the edge on the upper right-hand corner of the stone, do one lite stroke and look straight down on the edge.
You should see a solid shiny reflection from heel to toe, where the wire has been removed.
On a freshly lapped 12k, (round or bevel the edges), do 15 lite X strokes. Look straight down on the edge again, you should see no shiny reflections. If you do see reflections, do 5 laps, and check again. Keep doing 2-3 laps until the bevel are meeting fully and there are no reflections when looking down on the edge.
If you are just planning on maintaining a razor or 10 you can easily do so with a good 8 and 12k, you do not need to invest in a complete set of stones.
The super stones are notorious for loading up, for your final laps make sure to lap your stones clean. The build up of swarf can trash an edge. You should be easily able to refresh an edge from either and a 12k edge is a smoking shaving edge.
Switching to another stone or system is not a solution. Your problem is technique driven. There are no magic stones or honing systems. Film works just as well as stones, synthetic or natural. It is just a different form of abrasive.
Here are some pics of the edge, looking straight down on the edge, from the Second Try at Honing post. The first is almost fully set, (Note shiny reflections) and the second is fully set bevel, no reflections. The edge is where the Red Arrows are.
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