The difference here, is that I'm nudging 4-5k (And have seen a 10k on certain large pulls with optimal CD usage by the tank) on trash packs and averaging 2.5k - 3k across the instance including bosses in the 70 dungeons on WHM.
SCH's raid healing seems to be back on track now, but IMO SCH went from being the subtle champ of 4 man content to being rather underwhelming now =(