e-fan owners: whats a good target coolant temp?

[408F150]

I've had good results with the fan set to turn on when the CHT is around 210*, which I think is equal to the fluid being around 196*? You probably want to set it up so comes on right at the temp where the coolant normally sits. My engine runs at exactly 210* all day long unless towing or traffic, which is why I set my fan to come on only at 210* since thats when the engine's self cooling systems need help.