I'm not quite getting what you mean ther groth with the last example?
I actually agree with the next 2 I was just disagreeing with the idea of the waters flowrate having no impact on amount of heat taken from the water while in the rad. As a system yeah, the stories different.
For a a system to work with a slow flowing rad and a high flow cpu block you'd have and ever increasing backup of water that would have to go somewhere. Even with a res the system is has a fixed amount of water, which is what you're saying Butcher. I was just discussing the rad only