Holy converter slip batman

I went from using Dextron 3 in my powerglide to type F because of the smell. Some of that Dextron was smelling burnt right out of the bottle.
Been using Type F for years in my 727A, after a rebuild in the upper 70's. Also recommended by the rebuilder. I still use Dextron in my 2005 48R only because it has not been rebuilt or had a converter change out. I don't want to mix the two.