How do p/m barriers work?

barrier may seem ineffective on paper but it does help in some way. Especially frac barrier

I noticed that i die more often after i switched to food buffs from fluck

 

hi i have a question regarding barrier cooldown......

so i have +35% barrier cooldown from equips and +24% barrier cooldown from avatar
i thought that my cd is 30s - (59% * 30s) = 30s - 18s = 12s.

but when i use stopwatch, it's around 18s cooldown. Are equip and avatar not additive?

 

Barrier cd is calculated like this: 10+20*(1-bcd%/100)
In your case: 10+20*(1-59/100)=18.2, which is what you got from your stopwatch

 

I see, so in order to make it 10s cd, i need to have +100% barrier cooldown