Help with a build

I really want to make an AB build with shatering asault and I'm not sure what combo would work best: an offhand-dual-offhand-dual or one with lead-offhand-dual .

What type of build? spike or pressure?

And does SA exact 50 dmg per hit or it adds with base weapon dmg and +15% and +20% from customized. And a critical would do +dmg or it has no effect?

Any help is apreciated.

I think it's like d-shot, only hits the mentioned damage.

It's affected by the +15% but unaffected by customisation. It also benefits from crits, armour penetration from weaken armour, judge's insight, shadowy burden and sundering mods.

For example if stacking 40AP (JI+burden) both strikes crit but aren't sundering, you will deal 172*2 damage. Sundering crit for up to 202. Either way, potentially some pretty fun stuff.

I thought +15% from inscriptions and +20 fom customisation where both damage scalers..so either they both affect it, or they don't.

less theory more test, please

thanks guys.

And could any1 tell me why the lead attack are so unpopular. Except newbies most players go for the black line. Is there any decent lead-offhand that would work with Shatering asault?

You would want a low rc low energy combo to get as much Shatterings off as possible I guess..

Jagged Strike-Wild Strike