Since you can use the gravity/portal gun to move rubberwood that has resin spots on, would it be valid to get a load of resin-spotted wood in one place, then use the treetap machine that forestry adds to harvest it? I tested it, and found that a basic electric engine and solr panel was sufficient to run it, but I was wondering if the treetap will destroy the resin spots, or if it will let them regenerate? Because if it leaves them to regenerate, then it could mean a cheap and easy treefarm.