Incidentally, burning the excess 150kgs "comfort" fuel won't kill you: you still have D+E (CMR) in the tanks.
There are none so blind as those who will not see.
Think again....That 150 kgs is at the bottom of the tank. It is the last 150kgs to be used!!!!
My company has discounted every reason you can give for carrying extra ....in advance. The only reason they accept as valid is Low vis. Expected delays from my personal experience aren't statistically supported and are not valid. The ANO that recommends returning to the London TMA with div fuel plus 20 minutes holding fuel does not apply to 'us'.
I am trying to put this argument into perspective. The unwarranted pressure put on Captains to carry less and less fuel and sending out ****ograms to those who would seem to 'waste' 3kgs of fuel adds enormous, unecessary stress...and for what.....the equivalent of 1 P per ticket!!!