I know what you're going through. I spent hours trying to bleed the Nines. One "trick" I learned late was to make sure the bleed port is at the highest point on the system - in other words, rotate the master cylinder so it is pointing up. As I recall, the instructions that came with the bleed kit said one thing, but the photo showed something different, with respect to the orientation of the master cylinder. I eventually got mine to bleed properly after much frustration. Did you split open the caliper? I did (for kicks) and I think lots of air gets trapped in the corner recesses of the caliper (just guessing).
When I bled mine last summer, I posted a query like yours. Many came back and confirmed these Nines are a pain in the butt to bleed.
By the way, you can use regular DOT 3 or 4 brake fluid from the local auto store for the system- much cheaper than the Hayes fluid.