I can appreciate the amount of time to perform this testing, but there are two things that bother me and I cannot let go.

1. As others have said, adding the flow from each loop is not fair. By halving the amount of pressure drop of the one big serial loop to attain two loops, the restriction is less and flow rates must increase.

2. I guess I will be the first to mention that the commingling of water within the pumps do not make this a "true" dual loop setup. The cooler water for say a CPU loop will be contaminated by the warmer water of the other loop averaging the water temperature. I really see the term "dual loop" thrown around a lot in this review, but from a temperature perspective, this is not true.

I have always been a fan of big inlets for these types of pumps, which is why so many of us modded both the D5 and DDC from their pathetic stock tops in the first place.