I am going to agree with this one. I also suggest the skill cap is 46 since I made more than 40 attempts after lvl 46 without a single skill-up. That being said, I ended up with 31 quivers from 1 stack of boltheads (33 max.) and did not use any synth support so I am very happy. I also have a stack of walnut lumber left over which runs from 10-14K on my server. Not too bad all in all for a 40+ synth.
Just guessing, but goldsmithin seems to be more about combining certain metals, and smithing seems more like the shaping and cutting of those materials.
These bolts only cost me 22G each, so 2200G for a stack. But now that Bastok is destroyed in the Regional Control(ONLY CONTROLS GUSTABERG, /comfort), these bolts and the light crossbow aren't sold anymore. Dam you Bastokians!
I believe these are capped at Woodworking 46. I got a skill up every few synths until 46. Then I went through 2 stacks of supplies (24 synths) at 46 without a single skill up.