I just got my first dedicated GPS, an eTrex 10. I've been using various apps on my phone till now. It's my impression that it starts recording track points as soon as it's turned on, and the only way to stop it is to turn it off. Is that correct? I just want to be sure before I experiment with it further, because phone apps never work that way, and my initial reactionh was to look for a way to stop it.