1 - Digging
This skill increases whenever I dig using shovel
25 - Scooping
You do not aimlessly poke around in the ground anymore but chim it systematically, hereby increasing the chance of findings.
50 - Shovel amateur
100 - Shovel adept
Better technique furtherly increases the probability to find something. Plus, from now on you can dig out bitterroots!
200 - Shovel semi-professional
You do not let anything slip anymore. You will always find something when you dig.
500 - Shovel professional
The optimised shovel technique now provides great gains at digging.