Guild Wars 2

I have a condition thief and need some advice on runes for cond damage/duration

I am currently using 4x runes of afflicted and 2x runes of Krait
On my daggers I have 2x agony sigils
(with sup tuning crystals I get around 75% cond duration)

Are these ok or should I have different runes to best maximise cond damage/duration?

For each added second to bleed time you need 25,50,75 or 100 % bleed time. Everything over 100 % wont count, everything whatat adds more or less then a full second of bleed will be reduced to full second. For example if you have 74 % bleed time, that will still be 6 seconds, same as if you would have 50 %. With your build ( if u arent speced in deadly arts, i dunno) you have 50 % from gear and possible 40 % from food, so thats 90 % = not optimal ( unless u have 10 in deadly arts). You should change 2x afflicted to 2x centaur.