80/20... I had assumed you were having a shot at Pans Ops for the flexibility it gives to a designer, so as to come up with the best possible approach. In PNG, we have modified the criteria to suit our needs, but this has meant a tightening of the design criteria rather than a loosening of it. We invariably end up with several different notes on our procedures - but at least we don't mix and match with TERPS.
That is genuinely scary!
Hence my comment about the potential insurance ramifications.