I have 2x6600GT in SLI and I have one standard maze 4 waterblock. My question is will I be able to buy a low profile Maze 4 and make everything fit? The measurement from the board of one card to the board of the other is exactly 40mm and the height of the tall block is 30.8mm and the short one is 25.2mm. My motherboard is a DFI Ultra-D. Anyone got first hand experience, or any idea about this?