Not enough radiator space for me to ever consider dual loops. The reservoir that he is offering flush mounts w/ the reservoir holder for an even cleaner look. 11" cards like Titans won't fit w/o it either.
I also have a couple of DDC-1Ts that I have DIYINHK PCBs for that I'll likely be using. I wouldn't want to ruin the look by running a PWM cable to the motherboard.