Stacker is not that good for watercooling though I feel. Not if you must use all the drive bays anyway. I managed to fit a MCP 655, MCW60, Apogee with 1/2" tubing but my god it´s hairy. And it wouldn´t work without heavilly modding if I didn´t fit the radiator outside the case. As it´s I am mm from crushing both my X-fi and 8800 GTX.

However about these additives. I don´t know if I run a mixed metal loop or not.

I have the Swiftech apogee, mcw60 and mcr330 rad. What additives would I need?