Of late I have become interested in Bullseye shooting with the .45 ACP. It seems that slow, low pressure loads are the way to go. I have been using Alliant Bullseye powder, but a friend says that Winchester WST is what all the "cool kids" are using. My question is why? Is it better than Win 231? I've heard it is just a rebranded Winchester shotgun powder. Also that it "burns clean." Is it formulated to burn better at low pressure? Right now I can buy WST at our local Scheels, but can't find any Bullseye locally. Any thoughts, experience or speculations from the collective intelligence?