Sticking to the posted course of fire keeps me coming back to a club that holds matches. When the match officials change things up the day before, or the day of the event, it causes gear prep issues.
I understand SMGC's requirement to abide by the last minute range changes due to being a guest of USMC, but when those running the matches change things up randomly, it really affects my desire to show up. There are always other more constistent events around ... smallbore rifle, pistol etc .. and they tend to garner my attention first. I go to SMGC when I am in need of retaining/obtaining NRA HP classification. I wish it were more often, but past results have led me to compete elsewhere.