I started shooting CAS with USFA Rodeo's. They are really nice. Unfortunatlely I was borrowing them!
If I recall the story correctly, they "ARE" Colts. USFA bought the Colt factory and tool/die/whatever and started churning out their own stuff. I don't know what/if they changed...but I can say that the USFA Rodeo's I shot were really nice, and I'd recommend them if you were set on them.