[zoson]

@bb2k: Thanks for your input, I wanted a block that doesn't restrict flow because the rest of my system is optimized for high flow. Also thanks for that calculator, I had no idea about the hydraulic restriction problems. If I made the ends of the fins pointed like the one fin in the DDM3 would that help to reduce the problem? Lastly, on the issue of the wavy channels, I did that to induce turbulence, and to lengthen the channel itself - thus also increasing surface area.

@jaydee116: how much area on top do I need? I did that drawing freehand, so it is not quite to scale. The channels should have 2mm of free space at the closest point to the edge of the block. I'm planning on using a soldered on copper top, but if this also becomes impossible I can always make the block larger and add an o-ring, and also use the mounting holes around the socket. Currently I'm planning to use a clip.
-Zoson