Oh yeah, 4.7 of WST is one of my favorite loads. Very accurate and easy to shoot. WST is the replacement for WW 452AA which was the absolute best .45 powder I've ever seen. Bullseye is a great .45 powder if you don't mind the powder residue.
The folks out at Profire told me Titegroup is the same as WST. I haven't used any yet as I'm still working through my WST, but just as a heads up as its been tough to find lately.
If WST is the same as 452AA, the Titegroup can't be the same as WST, or vice versa. I recently bought a 3 pound can of 452AA, old stuff I know, and its not the same as Titegroup. Slightly different color and meters different. Not trying to say anyone is wrong, just my experience. Just my 2 cents...