Yep, I can vouch for martin's method and agree with Tim. It takes a bit longer and is, admittedly, a royal PITA to bleed this res, but it shouldn't take more than 8 hours, provided you use that technique. My GPU blocks and a PA 120.2 are on the loop with the right res and after give or take 8 hours everything is golden. I've been having some major issues with one of my cards, so I've been doing this quite a lot of this in the past fortnight. It will bleed, trust me