Druid Leveling

Hello,
I am currently leveling a druid, rolling as tank/heal/dps in dungeon finder, I have the shadowcraft heirlooms for tank and dps, and I have the dreadmist heirlooms for heals, currently speccing as a feral bear tank.
Just wondering if this has been done before?
And with how much success?

Well, it goes pretty well. Especially if you get dual spec at 40 lvl. Basically if you have dual spec with feral and resto, you can with heirlooms easily do all 3 roles in levelling dungeons.