I think I know what you mean by a "cocktail napkin procedure" although it is not an expression I am familiar with - I think we use "back of a cigarette packet" - and I can understand your 'position' because of your current role, but yes, the same, and it would not get within 100nm of an AIP. Don't get fixated on my idea - I am merely scratching around and looking for some explanation of a bizarre flight path in the complete vacuum that exists, and am nudged in that direction by the unsubstantiated comment by Meekal and now by this other forum post. I had been hoping for a little more light on the query.
The world is full of "back of a cigarette packet" procedures, particularly the private and military world, and just such killed the British racing driver Graham Hill a few years back.