i've used DD blocks and have had no issues with them , i have the MC tdx for intel and amd they both have proved more than capable of cooling dual or quads.
|eah, Fuzion without nozzle then. The nozzle kit comes with a washer you might want to consider using. It'll ensure most of the water routes toward the center of your chip properly.|
..D-Tek FuZion Washer Made Easy.