I'm about to buy the DangerDen RBX waterblock but a couple of questions have popped up. First off, is it better than the TDX and by how much? The second question is, does anyone know which holes you need to use to mount it, cause I have the standard two (dead center top and bottom) that my heatsink is on now, but the 4 other ones were never drilled into my mobo?! Do I need these or will it fit with just the two? I already know that the TDX will fit as is.