When you fish, you must select the depth at which to fish at. When you mine or log, you must select where you wish to strike the node. Does this matter?
At first, I was under the impression that this determined what item you would gather. Upon gathering more, I realized that even if I chose the same spot over and over, I would rarely get the same item upon successful harvesting.
The second thought that came to mind was that using the same depth/strike point meant that the second step of gathering would be the same. For example, if I mined in the middle and then used a medium striking power to mine up a copper ore, that if I mined in the same spot again, it would require the same medium striking force to dig up. In other words, I thought maybe mining in the same spot would reduce the guess work on how much power I should use.
This hypothesis turned out to be somewhat true. At times, I would use the same force and it would be correct three times in a row. Other times, mining in the same spot would require different power.
So my question is why do they have this step in the gathering process? All it does is seemingly makes the process take longer. It doesn't seem to gather the same materials and it doesn't seem to make the guess work of how much power/angle you should use any less.