boac:
aterpster - your logic escapes me! Is not the way "to learn all that is relevant to preventing a repeat" to ensure that WHATEVER the cleared area, pilots remain in it?
It simply is not possible for a Cat D airplane at max landing weight, and with adverse winds to remain within TERPs CTL protected airspace. This is why Change 21 of TERPs has better CTL criteria (not as good as PANS-OPS though) but thus far political forces in the U.S. have prevented implementation.
What is wrong with 842' (or 850)? Looks OK on the chart to me.
The visual geometry becomes difficult in a jet at low heights unless there is a lot of practice and a whole lot of proficiency. That is my considered opinion; others can certainly disagree.