I have been flying my Solo with a R10C camera for about a year now. I use it to do survey work. Lately the flight lines are starting to be more of a zig zag than straight. Still getting decent results. Just did a one for one comparison to P4P the flight line was much straighter and the processing was a bit more accurate also the point cloud somewhat better. Wondering if the motors are getting tired? Looking to swap out motors to a more powerful motor and maybe a better prop for more efficient flight. Any suggestions? Any body done this before? Could it be the flight controller?