Originally Posted by
Raldo
Unless Harmonize's function changed with 1.21, it doesn't do anything for you at the start of a synth. It doesn't reduce risk for X number of turns, that much I can assure you, because you never get a 'Harmonize wears off' (or whatever it says) message.
All Harmonize is really good for is reducing/removing Aetherial sparking, and you certainly won't have that at the beginning of a synth. Risk is some magical number that starts at 0 and slowly grows depending on the actions you take and how successfully you performed them. If it gets high enough, you begin to see a few sparks--higher, even more sparks, etc.
To me, Harmonize is a garbage ability, and I think you're wasting a crafting ability space. Judging from the abilities you listed, I would suggest Fullfillment, or one of the many "increases chances of success" 1-turn abilities.
Above data is mostly assumption, as we have no solid data on "risk".