I'm fairly certain that I'm making progress. I am noticing more depth in Vivid Vision. My eyes are aligning. I just wish things would move quicker.
I am now operating under the idea that fusion should not require much effort. Now when I'm doing the fixation cards, after I've been using the seven diopter prism for a while it gets to the point where it's easier to get fusion if I use less prism. This, I think, is because the fixation card exercise practices fusion, and my brain then tries to continue that practice when looking at things in the world. This, of course, doesn't involve prism, so the result is that the brain gets used to no prism a bit so when I go back to the exercise later with seven diopter prism, there's less need for so much. As a result, over time with doing this exercise, I need less and less.
Now I'm using just four, but it's a legitimate four--unless something happens and I have to move back in order to get effortless fusion.
So yeah, things are moving along I suppose. I really have been noticing some depth changes, and decreased suppression, especially when looking at bottles on desks, or the books on my bookcase. I am noticing the input more and more. I'll do this for a couple more months, ride it out, get as much out of it as possible, and then re-adjust if need be.