I just got me a G30 and was considering shooting majorsubcompact. I found this info on www.Gssfonline.com. What are the "other rules"? One round per target? Anything else? Competitors may utilize the stock GLOCK major caliber subcompact models (G-29, 30 and 36) provided they limit themselves to seven loaded rounds per string of fire and follow the other rules specifically applicable to the MajorSub category.