I have found VV 310 to be cleaner than 231. I could never get a complete burn with 231.
There are several powders that produce match winning ammo for the .45 acp.
They are Bullseye, WW231, Solo 1000, WST, WW452AA, Clays, 700x VV310,VV320, and others.
Bullseye is probably the most popular powder at the national matches.