Transmission cooler PLUS radiator?

think about it...running transmission fluid through a 180 degree rad is heating it and it is necessary for colder weather operation.
The transmission scientists all say to keep your rad (and engine coolant) at least 180 degrees to prevent wear.
If your build is mild and you don't spend a lot of time going through the big end at wot keep it simple and just run your transmission fluid through your rad.