Pilot and Maelstrom,
About all I use is 231 in 9/40/45 with excellent results . . . but I have considered Clays since it is more economical (yea, I'm a cheap b_stard!!). I used Bullseye and Unique for nearly 22 years but like 231 better overall.
So how does Clays measure, is it a ball powder? How clean is it compared to 231?
About the 200 LSWC, all my favorite 45's eat these like candy, namely my Kimber, Norinco, S&W 4506, and my CZ-97B. Only problem is the chambers get gummed up after about 100 rounds and makes cleaning more of a chore, so I have gone mostly to jacketed bullets. But I love the way the LSWC's chamber and shoot.