Currently the passive skill under most crafting Keen Eye is mostly being ignored because of it's lack of need due to add-ons such as Harvest Map.
An idea I had was to maybe make the later skills in this line (level two and three) have additional benefits like a chance to gain additional resources, something like the Green Thumb perk in Skyrim.
Keeping this as a % chance say 20% level two and 40% level three would mean there is not a massive influx of resources into the game but those who spend the SP would have a chance to come out with a little more, whilst making a mostly ignored skill hold value for investing SP.
@Turelus - EU PC Megaserver"Don't count on others for help. In the end each of us is in this alone. The survivors are those who know how to look out for themselves."