I love my RAMI. It is a little thicker than some of the other CCW choices, but my particular 9mm RAMI has cleared the IHMSA 25 yard field pistol chickens...
Obviously I got a particularly accurate specimen, but I've heard other reports of exceptional accuracy with these. The only gripe I have is when you load the mag with 10 rounds, it rattles... It feeds, but the rattling unnerves me, so I load 9 in the magazine. Some of the .40 S&W RAMI's initially had feed problems with certain ammo, But I beleive these have been adressed. Overall the RAMI is an excellent gun.
As for competing in USPSA production, 9mm is what everyone is shooting, due to cost and recoil.. the Shadow has been getting good reviews, but the regular SP-01 or the CZ75 are both awesome guns. It's best to take in a few matches and ask some of the shooters what they think.... Most guys are willing to help you decide, but there will be those who feel there is only one brand of pistol in the world.... avoid those guys!! HAVE FUN!!