John T,
Thanks for clearing that up mate. Actually, just after I posted I read the small note above that Jepp reference I posted which says similar things about spot heights. (para 3.11.2)
From what I can gather, maintaining MDA until on final is the most sensible option, despite what the references might say. Like many things, it seems to come down to the interpretation and decision making of the PIC.
And like you say, nothing at all wrong with being conservative up front!
Thanks again.
TL
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"Tears, crying, wish you'd never learnt to fly. Should have taken that job at the Council."