I would stay away from that "hold down the button and it spams commands until i release the button" as thats clearly automation. If that was allowed it would be a stand still farmers dream: just tape down the key and watch netflix. Better stop while you can. Personally i dont see the fuzz about minmaxing dps, its not worth the strain on the fingers spamming. Instead, figure out a relaxing tempo that suits you, and without getting any pain or discomfort. Then stick to that.