Yeah I am going to do active track once I get the video of the object on the back of the truck, then move back and up and active track, this video is basically to show how Gas lines are detected and they want the video in action. So I am think one video of the device and then fly back and up. Once I am happy with that video I will turn on active track to track the truck a little ways. Does this sound like a decent plan to you? Myabe Tripod mode would work for this situation.
I feel that mavic pulls back and up rather smoothly in p mode. Sometimes less so in sports mode.
I suggest you attempt this procedure 6 times in a row. Just do the exact same thing over and over and I bet you will be surprised how great it looks even at full stick. Make sure to practice in a large open area.
If you need to also move the gimball wheel while going back and up, I suggest you change the settings in the app to make the gimball move more smoothly. I forget the best numbers off the top of my head.