To get more shadowflame damage, is it worth spacing out HoG by one cast, e.g. shadow bolt? I've been doing that when practicing my keybinds / rotation on a target dummy. That way you get some ticks of a single stack of shadowflame, then get full ticks from a 2-stack of shadowflame. (or 3 stack if either HoG procs DTR, making DTR probably very powerful for aoe even once it's replaced for single target).
Also, is it maybe worth waiting for a molten core proc before entering meta above 500 fury? Although then you risk letting corruption drop if you don't autoattack (touch of chaos) in meta right away. Having corruption fall off just after you enter meta sucks, because you can't re-apply it without leaving meta. Molten core stacks and has a long duration, so maybe an action like
# untested, not sure if this does what I'm talking about above
actions+=/demonic_slash,buff.metamorphosiss.up,if=dot.corruption.remains<soulfire.cast_time
actions+=/soul_fire,if=buff.molten_core.react|target.health.pct<25
Has anyone tried putting corruption ahead of meta in the action list, to make sure it's cast before entering meta? (maybe worth it even if fury capped, since you'll be in meta a long time without corruption ticking)