Thanks for the tips. I can easily make the tradeoff with crit using mods, and should get down to ~409 rating and up to ~710 power.
In terms of reducing accuracy, what would you suggest? I'm currently not talented for accuracy, meaning I can't drop it my skill tree, and there isn't a enhancement that would allow me to drop Accuracy straight up for power - should I take the hit and get more crit/surge enhancements?
Regarding rotations, I'm interested in why you choose to start with OS or leave it until the first Cull is over (reasoning etc.)
I've always heard it called as:
CG -> SS -> CD -> OS -> WB -> Cull -> SoS -> filler, mainly Ambush/Rifle/EP -> WB, Cull, reapply dots as required, rinse and repeat.