As a USPSA CRO with SC endorsement, I just got back from running Pendulum at the WSSC this year. The biggest hassle I had was rimfire competitors not being familiar with the range commands. To the point that they wanted to argue what the correct command should be! Another problem with some is keeping their hands off their long guns while closing the bag's zipper. The range command thing got so bad; we had a pre stage briefing to go over them! The last thing is to keep your finger off the trigger while clearing a malfunction (just because it's a 22 doesn't mean it's not dangerous). The email training videos that NROI puts out would really help the average SCSA competitor understand the rules better (Jodi, you do would do well with this).