well the copper is WAY heavier. i feel that it will dissipate and conduct better for sure.

as to the block, i really will go with WL theory. i cleaned it up and whatnot, all of the 'damage' isnt even skin-deep so to say. i mean it is very superficial, so long term i dont think it will cause an issue. i already have it together and it just completed 12 hour leak test, so i will put it on a loop and then test for another 24 hours, if its good then off we go!

cant wait to get started finally i have *almost* everything i need to finish so i am doing some heavy duty stuff today.