^^ To expand on just "Perception", you can load Perception in every single available gear slot and still not notice a difference to the naked eye. The trade is going from a balanced gathering, output, perception build where you get max 8 attempts and single swing pulls, to a heavy perception build by lowering your gathering and have to double tap the high ore in the node. In my own experience the increase in HQ is so minimal that I even question the extra time for the double taps over time lost on another node. IE over a mining run I spent X seconds/minutes double taping, would I have been better off using that time to go to an extra node at the end of my run I would have reached in balanced gear.