It seems that the price of a single Gigantsgall weapon is roughly 20k and BCIII's are selling at around 120k on my server.

Lets say the desynth chance to obtain BCIII's from Gigantsall is 20% chance. (if anyone has any information on how often you get BCIII's from them I'd love to know) That means I'll get 1-2 BCIII every 5 desynths on average. So every 100k I spend, I get 120-240k on average.

I can't decide between leveling Alchemist for these desynths or Leatherworker for FCIII's from the bridesmaid / best man's shoes which cost 8k. The thing with Leatherworker is that you're pretty much always guaranteed to profit since there's a huge chance that you will profit off each individual desynth since you also get hard hippogryth leathers whereas with Alchemist it's much more risky because unless the BCIII return rate is pretty decent (like 33% chance or higher) then you could end up loosing a lot of money.