Anytime I'm out scouting for new territory, I will use the record option.(If you have the option) This way you don't have to worry about freezing the screen and possibly missing something else. You can go back and mark waypoints the same way during the playback of the recording. I fish a lot of different bodies of water from year to year, so having a tool that allows you to "remember" everything you saw is a great way to learn new spots and fish activity.