Upgrade effect duration

Hi

I was just wondering..
I d like to know how exactly effects given by weapon upgrades like Bleeding, poisoner bow strings etc are working ..

There is no info displayed about duration, way it interacts with skills (based on skill lvl? )

I believe Poisoners Increases duration either 25% or 33% (I have heard both)

all of them add a 33% increase in time

what about those that help you 'recover quicker' - also knock off a 1/3?
I'd almost guess more (1/2 or something) but that'd be just a guess

all the weapon upgrades for these things increase the duration by 33% no mre and no less thats just the way they are built..

increase bleed
increase poison
increase deep wound

all these get 33% when you apply the upgrade to your weapons