I can see your point in para 1, but I see no harm in having to 'justify' an extra fuel uplift with a PLOG entry - the decider will be what (if any) excessive 'punitive' action is taken on these decisions. As I have posted before, I 'grew up' in airline ops with some Captains taking "1 tonne over PLOG for good measure" on both CAVOK and CATIII days - no logic at all. If such a system makes crews THINK about why they need extra, I am happy with that. You can view it as 'pressure' or 'guidance' depending on the ethos. Going back to the BUD 'incident' discussed elsewhere, with a 2 runway airport, CAVOK forecast and under 6 hour flight, why is 'extra' over PLOG needed as some have suggested? Very nice to have, but........................