What gear are you rolling with? All Surge/Power enhancements? 1200-1300 expertise?
I'm still working on my gear.
My ideal is full Elite War Hero with:
Cunning Augments, 6 Crit Mods, 3 Power Mods, and Power/Surge everything else.
Obviously, use the new Elite War Hero bracer armorings on whatever Rakata/etc. PvE pieces you wear to boost the stats while keeping the set bonuses.
As for Expertise, I get as much as I can; that means I have it in both weapon color crystal slots. I have 1390 atm.