I currently mainspec demo and am considering destro as an offspec. How big of a difference in dps is going with GoSup instead of GoSac? Because with "GoSup: Haste>Mastery>Crit" I shouldn't have to do any reforging between the two specs and can quickly swap (Demo at my gear level is currently 4717 haste and then mastery; I'm currently sitting on about the same amount of mastery as I am haste)
Thanks in advance