Are you talking about the Black Creek match? If so they don't score major or minor, it's a very small match using a simplified scoring system similar to many 3 gun matches. It's not billed as USPSA or IDPA, it's a group of friends who put on a monthly fun match for their own practice and to bring others into competitive shooting. Its great fun, I shoot it whenever I can. They divide the divisions into revolver, single stack, and limited, and last month we had our first open shooter. The scoring method emphasizes accuracy, and a couple of misses could very well drop you behind.
ETA: Shoot the G17, it will work just fine.