What kind of competition are you doing? It almost sound like IPSC or IDPA?
If that' s the case, your ruger should do just fine- just get a good holster for it and some spare mags. Unless your pistol is grossly inaccurate, I wouldn' t worry about the accuracy of the pistol as most of the shooting is at very close range. If you can hit a grapefruit sized target to 15 yards with it, it' ll be fine. The only disadvantage I see, is he DA trigger pull on the first shot- it tends to slow me down a bit- I shoot a 92 FS that had a little trigger tweaking done on it. The 1911' s are probably the go to gun for any competition, but then again some of the the best shooters in my club use Sigs or Glocks.