Slight (only slight) thread drift.
I recall from a previous life, that the 'special runway procedures' (or whatever other name you use) produced by Jepps, would get you to the MSA, but the straight ahead options were only valid out to a specific surveyed distance, and did not necessarily guarantee survival to the MSA or relevant MEA. That is to say that they did not cover the sort of planning referred to by OS in his reply #27.
Does anyone recall the distance?
Snooze