tested with the chansaw and you almost get a level each other tree - and im way over 100 already.
the powertool option seems to be not working too.

would it be possible to have a penalty for using the chainsaw, so you get roughly the same xp per tree?
for the jackhammer i have not tested since a few versions, but it also should be same xp per ore node as with icepick.

also you get way too much apples at level 10 or higher of woodcutter, this value should be set lower and config sould change in 0.01 instead of 0.1 steps.

I noticed the power tool option wasn't working and have it fixed for next version.

Will lower the value for apple chance as well