I will concur that this must be a low level synth.
At 82.8 Alchemy on Earthsday with aprox 26% moon I HQ'd 50% of the 12 synths I did.
Unfortunately there is not increased results with HQ.
This is only used in enchanting a Primate Staff into a Kinkobo (lvl 100+ Woodworking). I can't link to the Alla information as it is not added yet.
http://ffxi.cannotlinkto/itemdb/6418
Edited, Wed Mar 2 10:28:06 2005