Your driving style is probably the biggest variable in tire mileage.
I also run Dunlops, and I just changed out a rear tire on my 48 at 10K. I considered that I got good performance and reasonable life. The problem here was 'style.' Let me explain.
When I first bought the bike, it was new and needed a break-in period. I *assumed* it would be a short hauler. As such I did slower speeds on back roads, and as I broke in the engine I scrubbed my 'chicken marks.' As I got to know the bike, I rode it more on highways.
In the last few thousand miles, over 2/3s of the distance was on the slab puttin' for fun. I wore a 2-inch section down the middle of the tire.
I scrubbed in the new tire, but returned to my highway schedule. In other words, two identical tires but two separate demands. I think most people evolve in their styles over time.
So when a guy asks about a tire or a tire company, I'm not always sure that he can accurately foresee how his riding will be in the future. Had you asked me as a new 48 owner, I would have surmised I needed a short-haul, sticky, apex grabbing, saloon hopping tread. In reality, I made a mini-touring bike out of her.
The moral of the story? Find a tire with numerous features to ensure the most options. As you get to know a bike, your desires might change.