For my aiming solutions, I have decided to reduce my computational requirements to simply having an LRF and a BDC scope for my key rifles. It's limiting, and not super precise; but for my limited purposes, it's also in the ballpark.
I'm not a country boy by upbringing, but have had as considerable an opportunity to engage in group camping as several decades of Scouting leadership can afford.
The rest is some very basic preparation, attitude, and winging it.
I think that concentrating on perfect solutions can, A) leave situations some out, and B) leave one disappointed when their Deja Vu malfunctions. To be really "prepared" probably requires more carrying capability than I will ever possess.
Survival is, IMHO, at least as much about attitudes as equipment. If I have carry it in, maybe I'm counting too much on 'things'. It may make more sense to know the A/O and what it has to offer than trying to provide it all by myself. Redundancy isn't just about what to pack.
My serious education about survival began with Angier and Whelen's On Your Own In The Wilderness in the '50's.
In answer to the OP questions, no, and no; but I have never done so anyway.
Greg