At least goldsmithing 47, as I am 46 and got a skillup while crafting. Did succeed in the synth, though.
At 54 goldsmithing I was 0/7 for skill ups, nothing definate there. After I reached 55 from another synth, I went 0/16 on skill ups again. I would believe the synth is between 47 and 54, looking for more info. Biggs641 20:34, April 1, 2010 (UTC)