OK, now that I'm over a week into my transmission service success, I have a confession to make.
I used Royal Purple Max ATF in the transmission...
There, I said it. I couldn't find anyone that had tried it (and/or posted about it). I know that Valvoline MaxLife is the go to for this transmission, but I found a great price for Royal Purple Max ATF (which was likely listed incorrectly but it worked in my favor) and I received 24 quarts for about $130. I have to say that I am a fan of Royal Purple but I was going to go with Valvoline MaxLife due to cost until I found this deal. It's the first Royal Purple product I've used that's not purple, it's red like other ATFs.
That said, at first I really didn't notice much of a change. I believe my factory fluid was low for the first 81,000 miles of it's life and I used almost 9 quarts of RP filling it back up with the new 2 quart expanded capacity of the PPE pan. After about a week of driving though with the fluid working it's way through, I can tell my transmission is smoother but more importantly I think much of the perceived smoothness is that the truck seems much quieter. It also seems to take much less effort for the engine to move the truck down the road (which is likely contributing to the sound level reduction). The truck seems to go through the gears faster now to get to its happy place. I reset "trip B" in the cluster and so far I getting about 1/2mpg better and climbing too.
One thing I think I've seen (somewhere) recommended is to either do a quick transmission relearn after servicing the transmission. I'm happy with it's performance now, but I thought I saw that it was recommended by the manufacturer after servicing so I might initiate that with AlfaOBD sometime soon.
EDIT: I also used Royal Purple in the front and rear differentials, but Amsoil in the transfer case.