Okay, I've been able to successfully get BAMT up with 6 cards on the Fatal1ty Killer mobo. As soon as I add the 7th, Xorg won't start and it crashes on boot. Just letting you guys know. Stick to 6 or less with this board.
I've found a super easy way to short the 1x presence pins. Take a 68 ohm resister (same thing you use to make dummy plugs) and use that to short the 2 slots in the bus. No more trying to cut down wires. No more bending before they fully insert. It works instantly. Hope I save someone here countless hours.