I may not be getting this all straight, but I must first say that from your first post, several of those choices could be done (and should be) on different in order to be fast.
For example, my local track is tight (!), tight, tight, so it isn't an option to let off the throttle 3-4 meters before the apex of the turn. That could be enough time for two guys to slip underneath your vehicle as you square up to accelerate out of the turn. That is why oneways aren't the best for my track (unless you are adventurous and go sliding into 180 hairpins).
At most of the tracks that are permenent and specifically designed for 1/8 scale cars, there is usually no real point at which late breaking will pay dividends (as you'll end up sliding off the track, or you won't have any corner-exit speed).
I feel that the main component to fast lap times is fast corner exit speed. The fastest way to enter a corner (and subsequently follow through) depends on what kind of a track you are racing on.