Fury TG BIS Weapons

[attilah]

Hello,am new on this forum.I'm here becouse in game i ve found a trouble in some simcraft calculations as these confirm that Gurthalak heroic + Axe 410 is better than 2x Gurthalak heroic;In fight is not easy to verify it becouse a lot of others random procs and situations make it so random; so i'm here waiting for a your personal point of view about this.Generally i play Arms,using Fury TG only at Spine of Deathwing encounter for the tendon's burst (also with selected trinkets for that situation).I hope i can get soon a your answer about my doubts, i really don t know how to know if would be better use double gurthalak heroic or the axe with that (also talking generally not only considering spine of deathwing encounter): Simcraft says that i'd lose about 1k dps using 2x Gurthalak but i really dont know if these datas are trusted. Ask you sorry for bad english,I tried to do my best and hope you can understand easily and answer soon.Thanks