Oh, I don't know, my L16 sorc FoD's the heck out of mobs in Vale quests on normal, but can't land ANYTHING on elite. Have to go to damage spells, and with all the hit points the mobs have, that takes forever, and my spell points run like water.
I realize they've made life hard on rogues with this change, but I believe I have heard that Mod 7 is bringing some much needed rogue love, so hopefully there will be a rebalancing at that time.
Which, btw, will make me happy, because my L15 (12R/3P) battle rogue needs some love now, after these changes.