Chip and effects on auto trans?

[Jmunk]

I have a 01 F250 with 7.3l with 108k miles. I want to get a phoenix chip, but I'm wanting to hear some feedback from people about the effects on the 4r100. I am looking for something to give me a little more power, nothing crazy. I would run the truck in the 65hp daily driver tune 90% of the time when not towing my boat. The trans now feels solid and shifts good. I know these auto trans aren't the best, but I'd hate to run it on the 65hp DD tune and have it take out the trans or weaken it. I also have a 4" lift and 35's on the truck. I know a lot comes down to how you drive the vehicle and I take it pretty easy. Truck is completely stock except for a drop in K&N filter.