I'm interested in this topic as well. The OP asked for some input on issues and remedies. This would be a good table to have for trouble shooting the trans... Am I wrong?

I'm interested because my trans is almost at 150K. I changed out the fluid at 90K w mobil1 and so far no problems. Am I playing on house money or can frequent changes help prolong the life?
And what might be some things that could be fixed before it goes to prolong the life, if any?