I have a Corsair H80i and I want to get rid of the stock fans on them for reasons that are not important (I just don't like them). I'm planning to replace them with two Noctua NF-F12 PWMs in a push/pull configuration; however, I've been doing some research and fail to see the benefit of having a high/static pressure fan in the pull part of the configuration. A static pressure fan is to prevent any air from bouncing back from the radiator and out through the spacing between the fan blades.

Now that being said; would it not be better to have one Noctua NF-F12 PWM to push the air through the radiator and an airflow fan like the Noctua NF-S12A FLX to pull the air from the radiator? Also, would using a pressure fan to push air really needed? Could you just use and airflow fan to just pull air?

I would appreciate anyone's insight; especially if you have lots of experience testing out these types of configuration. Thanks in advance