Originally Posted by
Twintop
Both sets are a composite of 5 different fight types in single and 2-target scenarios, taking the top 2 DPS options for L45 and L75 talent combinations for each fight/target type combination; I.E.: 90 total sims, taking the top 2 from each of 10 categories = 20 of 90 sim types go in to the stat weights. This is NOT just 'run it with Patchwerk and call it good."
The raid BiS list's stats use the 'bis' profile from SimC (ilvl ~510), while the pre-raid uses a set of ~489 gear that is below the 8085 hate breakpoint.
More on topic, to quote what Dyre said: why come here for a question about something on another site? The BiS list is posted over here, too, but the pre-raid one is not.