I think the "Gatherer" trait line may be bugged. I got all the way to Master Gatherer and still only get 3 oz of Spring Water a go. Sometimes 5 if I get a lucky event
There is a table the game uses internally to pick your gathering rewards, and the traits just change the weights of each reward on the table, so you have a higher chance of getting better rewards. I’ll make sure it’s working, but I just wanted to clarify how it worked, it doesn’t like directly buff the rewards, just changes the weights.