The way I understood it was that yes, the shifts would get better but overall, the trans life would wind up shortened somewhat unless you changed the clutch pack material to something more compatible with the compounds in Type F/T.S. fluid. Something about Type F/T.S., over time, literally dissolving the bonding agent that held the friction materials of the clutches together and on their discs/plates.
When I was a kid I had some "Sizzler" cars. They were basically Hot Wheels only with a battery and a motor which originally ran on the same tracks as Hot Wheels until they got dedicated track of their own. I had the fastest Sizzlers in my neighborhood because I had concocted a "Super Lube" in the garage by basically mixing every single lubricant I could get my hands on. The recipe was a little WD40 sprayed and collected in a container to which I added some "3 in 1" brand oil, some powdered graphite, a dash of car motor oil, some "Go Oil" which was stuff for slot cars that I had bought at the hobby store, and my secrete weapons: three different mystery lubricants that my Dad used in his vending and pinball machines. This was stuff that I knew nobody else had access to. I'm sure there was some other stuff that I don't remember that I was using too. My cars were rockets until my mystery brew dissolved the glue that held the magnets in place to the insides of the cases of the motors. Once that happened, the magnets would immediately attach themselves to the armature, and I would go from having the fastest Sizzlers to the slowest, to having the only ones that wouldn't even run at all! That lesson wasn't lost on me when, years later, I heard about the possible issues with running T.S./Type F fluid in a car that was supposed to have Dexron. You might say I was a bit scared from my earlier childhood trauma. It is also why it makes sense to me that such a thing could occur because I had already lived it! Faster now, dead later!
Regards, Eric
