My rotation for anything 40 durability up to level 35 is Inner Quiet -> Waste Not -> Steady Hand -> 3x touch -> Great Strides -> Touch -> Hasty Touch -> Careful Synthesis (replace Hasty with Careful if you can't finish it in one shot).
For 70 durability it goes: Inner Quiet -> Waste Not -> Steady Hand -> 2x Hasty Touch -> 3x Touch -> Steady Hand -> Hasty -> Great Strides -> Touch -> Careful Synthesis x2.
It might differ for you depends on how many synth step you need, how much CP you have (Accessories help a great deal) and what your current stats are.
You want the very last touch to get Great Strides for greater effect.