OK then, I will take the bait and await the flak.. We all accept that a climb or descent on conventional radio navaids/ILS etc is the apparently "safe" norm. So for the pilot with IFR approved installed GPS unit on board and perhaps a couple of back up portables, are these any more unreliable than the conventional aids? or perhaps even more reliable, more intuitive, and more easily programmable for this type of ad hoc operation? or do we just accept that regardless of qualifications , experience, equipment or expediency we do not fly in a 700 foot overcast?
Edited to say that pursuing this subject will result in serious thread drift which is not appropriate for such an important thread topic!