Sorry about the slow response:
I gather the Base Captains are paid extra based on either on time performance or "fuel performance" (ie for the base aircraft/crews) and the BCs can opt for whichever they prefer.
This fact might explain why certain BCs put Captains under pressure to carry PLOG fuel. One has, of course, to question whether this method of paying BCs extra is really in the interests of flight safety.
Does one really have to question this, or is it not blatantly obvious?
This airline is living right on the edge of sensibility when it comes to safety. My own policy of not using it, nor allowing my family to do so, becomes stronger almost every time I peruse the pages of PPrune.