Ready for 2-Star

[FCrowles]

I am not going to include Waste Not 2 because 1)you do not have it, 2)I do not have it, and3)you do not want to take the craft to 50 to get it any time soon.

Master's Mend : restores 30 Durability. That's 3 extra turns, at 92 CP. 30.67 CP/extra turn.
Manipulation : restores 30 Durability over time. That's 3 extra turns, at 88 CP. 29.33 CP/extra turn.
Waste Not : halves durability loss over next 4 turns. Net effect : 2 extra turns (4 turns total, but 20 durability used, difference is 2 turns), at 56 CP. 28 CP/extra turn.
Master's Mend 2 : restores 60 Durability. That's 6 extra turns, at 160 CP. 26.67 CP/extra turn.

If you have the choice, use Master's Mend 2. Use it when you hit either 20 or 10 Durability left, assuming you have the CP remaining for it.

Um I'm a leatherworker 50 trying to craft Griphonskin armor so yes I do have Waste not 2

Alright once again I am not looking for a 100% chance to crit 2 star every single time. I am looking for a rotation using HQ materials that will get the most out of what I have. No I will not level every craft to 50. This is what I have and what I plan on attempting it with, I understand its not optimal but that's not what this thread is about.
Currently I have 15 Every Craft 50 Leatherworker, from start to finish what is the optimal rotation to get the most out of what I HAVE not what I can get?