Yeah, if you run a synthetic in there, you will be happy. If you were having problems, this can make them all better (notice I said can). I had a 77K tranny in my SC that was hard to go into 1st if you took your foot off of the clutch. Within a few miles, you had to go 3,2, 1 to start in first if you did this. Filled it up with some Royal Purple and a bottle of friction modifier and the problem went away. Lasted another 30k with me beating the **** out of it before I lost a 3/4 blocker ring (I think...still have not pulled it apart).
So yeah, run synthetic ATF.
SWS