Most hc guilds did in fact delay the raid by 1 day for extra shards, it takes 1 day to clear normal anyway. What surprises me is that we don't have rogues with stage 2 in guilds like Exodus who server and factioned changed to kill ther 6/8 heroic bosses more than 2 times.
If we take
http://us.battle.net/wow/en/characte...unnel/advanced for example, he has been in for 27 boss kills in DS(both normal and heroic), which with 2 clusters per boss and 6 gems from cluster on average should bring him very close to the needed amount. With rng in play he may be higher or lower but still should get his stage 2 when they clear the 2 bosses they havent killed this reset - spine and madness, putting him 1 reset ahead on stage 3 progress.