hammertime, try using the all-weather fluid. i did the same test and had the same results, then tried the all weather fluid and my 60' dropped back down to the same times as the type f. had an issue with my governor gear and the speedo drive gear clip last year, took the trans apart and the clutches, steels and seals still looked brand new.

Its no faster with the type f other then delay, thicker fluid slowing the fluid to release. I am going to TCI fluid instead, cheap and suppose to cool as well as hyd or syn fluids