Come on, Sky9 - tell us what you did with your extra '2000kgs'. Did you increase CMR by 2000kg? Did you hold for 40+ minutes? I'm intrigued. Presumably you had some idea why you carried it? As someone who spent half his flying life short of fuel I LOVE lots of it, but cannot see the point in tankering it around for no reason.
More fuel does NOT mean 'safety first' per se.