I'm getting spooked by downhill sweepers

[Sentox]

ride? you mean wide perhaps?

Yes, quite possibly I do.

I wish your advice was mentioned more often amidst literature and such. When I first began riding, I was left wondering how I'm supposed to pick a late apex (or any sort of apex) if I can't see the whole corner. Later I realised that you just have to follow the outside line to maximise visibility until you can see a clear exit, then pick an apex from the remaining curvature of the road. And, as you point out, the optimal line may not be a perfectly chosen late apex... road surface, obstacles, traffic, etc, may all dictate otherwise.

Lots of good advice here. I'll just add grip the bike with your legs. squeeze the tank and support yourself with you "core" back and stomach muscles. It is easy to lean on your bars going downhill, and that can be detrimental to your steering.

This can be somewhat harder in practice than theory when the downhill section gets bumpy

[The Stranger:Me]

Yes, quite possibly I do.

I wish your advice was mentioned more often amidst literature and such.

The other benefit of this approach is lost on most.
In tight twisties (which we all love right), if you stay wide until your exit is visible there is a good chance the entry to the next bend will reveal itself and you can exit the current corner in the correct position for the next corner.
That will allow you to ride twisties both faster AND safer, because frequently when you fuck up on a bend what you actually fucked up was the bend before, exiting it too fast and/or in the wrong position.