[ ] Does saving & reusing the x/y/z deltas help, or does the compiler already optimize that away?
[ ] If I do make changes, make the indentation more readable.
Otherwise, no-build because commit history.
[ ] If I'm really bored, see if there's a more efficient formula to calculate angle.
Maybe something that doesn't have to find x/y/z and go from there?
https://github.com/yakra/DataProcessing/blob/f86fadc9479d6ad91852c6c38d35f641b70ec6ef/siteupdate/cplusplus/classes/Waypoint/Waypoint.cpp#L150-L156