Augment: "Chance P.atk"

Hello, I've been trying this augment that I got on my bow. You'll see, it lasts for about a minute and It's really hard to trigger, which would be ok if the bonus was good.. but... It only gives me 76patk T_T (got about 3k+ with my shyeed bow).
Is this ok? Is it supposed to be that low? I mean, I can't even have it permanently on..

Just wanted to know if this is supposed to be this way.

Thank you!

Yes it suppose to be like that, but pvp p attack will add 5% of physical damage.

So pvp patk it's % based and p atk it's just 70 ? is it like that?

PVP P atk will not be displayed on your stats, but it will do 5% more damage.

I've just tested passive:m def -> 17 mdef T_T is this right too?

Yes, P/M atk/def have low stats.
Here you can check all augmentation skills - http://l2under.com/data/augmentation/