I made my first foray into healing after 7 years a few months ago. I've been fine tuning it since then. Last night was my first time in 10s and we cleared wing 1 with no problems and I didn't have to use Innervate much. Once we got to Galakras, though, I ran out of mana (with 2 innervates during the fight) by the time he was shot down.
I've been using Ask Mr. Robot with custom weights. I'm doing 13163/37.52% haste and set my Spirit to 12000 using the Total Effective Spirit option (including trinket/meta/enchant procs) which gives me 8566 Spirit in character sheet value.
I'm thinking about tweaking these numbers so I thought I'd post here and see what other Resto Druids run with.