That's still my favorite fluid. We ran that fluid in McRats Casper throughout its entire racing career. Pat was burned down on the line a couple of time smoking the converter and he still took the trophy home with the truck running mid 10's with blown converter. Plus 190.00 is a great price for a 5 gal bucket.
Have you ever looked at Cenpeco's Synthetic ATF? Reason I ask is I have 10gal sitting at my shop a customer screwed me on (never picked it up/paid, learned my lesson). It says it is recommended for Dex 1/Dex 2/Dex 3 as well as Allison C-4, TES-295, and TES-389.
Link: http://www.cen-pe-co.com/Product%20Data/Data%20Sheets/SYNTHETIC%20ATF.pdf