Fan on Motor, Speedo or Both?

Hello,

I've got a 1897 and I use it with a 10L and a 9L. Just starting to understand gearing as I've had lots of heat problems this summer. My original 9L died after hitting 200+ degrees after each 5 min run.

Now I've got a fan on the motor, I switched to the 10L and geared it so I'm not yanking full throttle everywhere and my motor temps are good. Last 5 min race was about 165 degrees.

My (long winded) question is, do I need to put a fan on the speed control? Which is more important, putting a fan on the motor or Speedo - or both? And if you put a fan on the Speed Control, which direction do you want the airflow, blowing down on the speed control or blowing up as if to remove heat from the heatsink?

I also just installed one of the awesome RC-Monster Heatsink's on my 10L, I've not run with that installed so maybe it will make my motor even cooler!

Any help would be appreciated.