I have been using Rath's Maker's Mark Rotation for awhile now and it gets more efficient as our stats increase. The problem is I just can't sit through the Flawless Synthesis anymore so I revised my 2* Rotation that requires just 963 Craftsmanship & 435 CP which is reasonable with the new Ironworks gear. Here is the Rotation:

Muscle Memory
Comfort Zone
Inner Quiet
Waste Not II
Steady Hand II
Hasty Touch
Hasty Touch
Hasty Touch
Hasty Touch
Hasty Touch
Careful Synthesis II
Careful Synthesis II
Comfort Zone
Steady Hand II
Hasty Touch
Hasty Touch
Master's Mend II
Hasty Touch
Hasty Touch
Steady Hand II
Hasty Touch
Great Strides
Innovation
Ingenuity II
Brygot's Blessing
Careful Synthesis II
Careful Synthesis II
Careful Synthesis II

There are 10 Quality Checks vs Rath's 11, but you don't need an IQ stack of 11 or even 10 if your control is high enough, an IQ stack of 9 is the threshold. If you can make it to 471 CP you can swap 2 Hasty Touch with 2 Precise Touch on the Good Procs or a 100% Basic Touch. You can use Tricks of the Trade, but the 1st one will cost you 5 CP if taken on a turn with Steady Hand II active, it's a pretty tight rotation.

This rotation works on 3* but with 9 Quality checks, you replace the last Hasty with a Careful Synthesis II under Ingenuity II at the end. If I have > 2K starting Quality I use this one to save on time. Of course RNG will bite you in the ass, but that's always a given.