how many ppl run a switch to there fan so they can turn it on whenever? i know ive read it where a couple ppl do this, would you guys suggest this?

also- im running a dual core half radiator right now with a stock oem fan, should i upgrade to a slim fan or will the oem be fine?

 

depending on your setup OEM should be fine.

i don't really see the point with the fan switch, maybe to cool it down before you start at the track or something, but when the engine gets hot, it comes on, i think that is suffiecient enough