Code:
priest="ToF_Vlord_Sanl_PI_LotV"
thumbnail="http://eu.battle.net/static-render/eu/howling-fjord/64/84236864-avatar.jpg"
level=110
race=blood_elf
role=spell
position=back
professions=engineering=700/enchanting=710
talents=http://eu.battle.net/wow/en/tool/talent-calculator#Xb!0000000
artifact=http://beta.wowdb.com/artifact-calculator#XJZJZbbbLIAAAAAAAAAA
spec=shadow
actions.precombat+=/snapshot_stats
actions.precombat+=/mind_blast
actions+=/call_action_list,name=main
actions.main=voidform
actions.main+=/surrender_to_madness,if=talent.surrender_to_madness.enabled&buff.voidform.stack<10&time_to_die<100
actions.main+=/power_infusion,if=talent.power_infusion.enabled
actions.main+=/void_bolt,if=(target.dot.shadow_word_pain.remains>=travel_time&target.dot.shadow_word_pain.remains<travel_time+cooldown|target.dot.vampiric_touch.remains>=travel_time&target.dot.vampiric_touch.remains<travel_time+cooldown),cycle_targets=1
actions.main+=/void_bolt,if=(target.dot.shadow_word_pain.remains>=travel_time+cooldown&target.dot.shadow_word_pain.remains<travel_time+cooldown*2|target.dot.vampiric_touch.remains>=travel_time+cooldown&target.dot.vampiric_touch.remains<travel_time+cooldown*2),cycle_targets=1
actions.main+=/void_bolt,if=(target.dot.shadow_word_pain.remains>=travel_time+cooldown*2&target.dot.shadow_word_pain.remains<travel_time+cooldown*3|target.dot.vampiric_touch.remains>=travel_time+cooldown*2&target.dot.vampiric_touch.remains<travel_time+cooldown*3),cycle_targets=1
actions.main+=/void_bolt
#actions.main+=/dispersion,if=buff.voidform.up&buff.voidform.stack>20
actions.main+=/void_torrent,if=buff.voidform.up&buff.voidform.stack>17
actions.main+=/shadow_word_death,if=talent.reaper_of_souls.enabled,cycle_targets=1
actions.main+=/mind_blast
actions.main+=/shadow_word_void,if=talent.shadow_word_void.enabled
actions.main+=/shadow_word_death,cycle_targets=1
actions.main+=/mindbender,if=talent.mindbender.enabled
actions.main+=/shadow_word_pain,if=!ticking,cycle_targets=1
actions.main+=/vampiric_touch,if=!ticking,cycle_targets=1
actions.main+=/shadow_crash,if=talent.shadow_crash.enabled
actions.main+=/shadowfiend,if=!talent.mindbender.enabled
actions.main+=/mind_flay,if=!talent.mind_spike.enabled,interrupt=1,chain=1
actions.main+=/mind_spike,if=talent.mind_spike.enabled
actions.main+=/shadow_word_pain
head=celestially_aligned_hood,id=139188
neck=cursed_beartooth_necklace,id=139239
shoulders=mantle_of_perpetual_bloom,id=139192
back=evergreen_vinewrap_drape,id=139248
chest=dreamscale_inlaid_vestments,id=138215
wrists=cinch_of_cosmic_insignficance,id=139187
hands=handwraps_of_delusional_power,id=138212
waist=pliable_spider_silk_cinch,id=138217
legs=ragged_horrorweave_leggings,id=139190
feet=cozy_dryad_hoofsocks,id=139194
finger1=dreadful_cyclopean_signet,id=139237
finger2=twicewarped_azsharan_signet,id=139238
trinket1=vial_of_nightmare_fog,id=138222
trinket2=natures_call,id=139334
main_hand=xalatath_blade_of_the_black_empire,id=128827
off_hand=secrets_of_the_void,id=133958
gear_spell_power=6200
I used the same gear set but added more spellpower. What I've got is that ToF>FotM>SWV, Vlord>Vray>ROS (I think the latest SimC beta already accounts for the future change and gives 10 insanity for each SWD), AS>SI>Sanl, Mbend>PI>SC and StM>MS>LotV. However with all the weirdness going on with StM dps it may be actually worse than MS with 2 targets.