Post Rad Chiller Concept

[Cronos]

the reason why i sent you that DB-1 pump is because i think it might be more effective in a radiatorless loop if we slowed the flow down a bit so the water had a bit more time in the cooling pot section.

Nah, it doesn't work that way. At lower flow, you will have higher temp drop in chiller but also higher temp increase in CPU WB.
Higher flow always better for single - block loops. For multi-block loops, first blocks after radiator (chiller) may benefit from lower water flow at the cost of all following blocks.