Transmission Temp... What range do I want to be in? -High Stall Converter

I prefer the sender in the pan also. The fluid is hottest coming out of the trans going to the cooler but that doesn't tell ya squat about how efficient the cooler is. I'm no expert but it seems to me the temp of the oil in the pan that's being pumped to the trans. is what you should be concerned with. I also prefer to see it no higher than 180.