Actually my MCR320 is running on the Yate loons D12SL-12 fans.
Would it be a better choice to run it on Scythe S-Flex F?

My set up is only cooling my CPU. Below is my WC setup.

Swiftech GTZ
Swiftech MCR320 Radiator
Swiftech MCP355
XSPC Acrylic Pump Top Reservoir