W/ adv. image support, and I didn't fail very much.
And during my 3rd stack, I got an HQ synth (^.^)
I'm keeping that one for personal use.
4 stacks of materials got me from Bonecraft 11~12 to lvl 14 that day (Full Moon, darksday). Sold them to the guild for around 100~150 gil loss per synth. At AH prices, it's break even, but they are slow sellers.
This is right, I was given the recipe at lvl 7 for the first time, although I started making them at lvl 5. Only craft them on Lightsday or Windsday with image support, it will increase you chances of success.