I just finished the 50 Spirits of Salt for the ALC mainhand. I got about 90% HQ using 1 HQ Volcanic Rock Salt per synthesis. craft/control was 352/345 and CP was 386. You can get by with CP 375 if you change the last SH to SH2 and the ST to BT. You need 352 craft to get the needed 105 per CS2 to get to 419 with 4 CS2's. You can get by with control less than 345.
macro1:
/echo -------------------------------------------------------
/action "Comfort Zone" <me> <wait.2>
/action "Inner Quiet" <me> <wait.2>
/action "Steady Hand II" <me> <wait.2>
/action "Waste Not II" <me> <wait.2>
/action "Hasty Touch" <me> <wait.3>
/action "Hasty Touch" <me><wait.3>
/action "Hasty Touch" <me> <wait.3>
/action "Hasty Touch" <me> <wait.3>
/action "Ingenuity II" <me> <wait.2>
/action "Careful Synthesis II" <me> <wait.3>
/action "Careful Synthesis II" <me> <wait.3>
/action "Careful Synthesis II" <me> <wait.3>
/action "Comfort Zone" <me> <wait.2>
/echo *Master80a Complete* <se.7>
macro2:
/action "Steady Hand II" <me> <wait.2>
/action "Waste Not" <me> <wait.2>
/action "Hasty Touch" <me> <wait.3>
/action "Hasty Touch" <me> <wait.3>
/action "Hasty Touch" <me> <wait.3>
/action "Hasty Touch" <me> <wait.3>
/action "Steady Hand" <me> <wait.2>
/action "Ingenuity II" <me> <wait.2>
/action "Innovation" <me> <wait.2>
/action "Standard Touch" <me> <wait.3>
/action "Great Strides" <me> <wait.3>
/action "Byregot's Blessing" <me> <wait.3>
/action "Careful Synthesis II" <me> <wait.3>
/echo **Master80b complete** <se.10>
Since it's not 100% HQ to start with, I haven't worried about things like the small chance of a poor condition on the BB.
ETA: I've tried a variety of other rotations, and this is the best I've come up with or found, at least when you need to get a lot of quality. Others seem ok when you start with a lot of HQ materials. According to the crafting simulator, this rotation is still almost 60% chance of HQ even starting at 0 quality.