+1 on what exactly is corsairs mesh, physics setup and results.
Reporting seemingly no difference between side panel on or off is a bit suspect and imo warrants further looking in to.
I would like to know if there's a significant difference between running a 2* 240 and 360 +120.
The 360 should give a positive pressure and only leaving heated air for the exhaust, whereas the 2* 240mm (and possible location) might have the exhaust able to pull in non-heated air.