I am planning on shooting in the GSSF competition in GA the weekend of Oct 1. The problem is that I won't have time to go to the range first and figure out which pistol to shoot and as I have never been to a GSSF match, I need some advice. I just recently shot in my first IDPA match and used a G17. I am the fastest with that gun, and can hit accurately enough with it for IDPA purposes. However, I shoot my G30 and my G20 more accurately and will most likely use one of those two for the GSSF match. If I need to shoot at a lot of targets beyond 15 meters or so, I would rather have the G20, but if it is closer in, I think I would be better served with the G30. Any advice out there from those of you who have shot in the GSSF matches before?