Scott many here have gone to Royal Purple Synchromax tranny fluid to help get rid of notchy shifting when the tranny is cold. And because the lifetime fill thing is b.s. I have to say that it certainly helped me re: the notchiness, but it's not perfect.
It's quite easy to do. There are threads on here w/ instructions. I did mine with ramps up front, hydraulic jacks in the rear, and a small $10 hand pump. The only retailer near me (NJ/PA) that shelves the manual tranny fluid is Pep Boys so call around. Same place had the pump. You need 2 quarts to do it. You may not see it weep out the fill hole after 2 quarts, but its enough. Like 2 more ounces gets it to overflow so the 3rd bottle becomes a $20 garage ornament...like mine.