At first it appeared to be a good script, while I was doing tin in varrok east.
When I tried copper in varrok east, it would go back and forth between two copper rocks, each one was on opposite sides of the mining field.
I then tried to do iron, in rimmington. It seems to not finish the rock, and click elsewhere, or it mines one rock, runs to the other side of the mining field, half way across it runs back to the rock that respawned.
There does not seem to be great logic involved in the script, I wonder if it could be fixed or made to stay on the exact same spot (I tried stick to starting tile but it keps moving around and getting 0 rocks). I hope this feedback helps you with future updates.
I ended up using the "select own rocks" feature, to stick to specific rocks and it seems to work a treat! Considering I am on a trial I am happy with the result, however with the above problems, I am not so sure I will buy this script just yet.
Just used it again and got banned after a 2hours rip