How much does this affect aim and also how quickly you can tire yourself out?(Stamina) I see most streamers or videos of people with a flat top desk with there arm flat to the tablet. My setup doesn't allow this and was wondering if I should change if this is a big deal. http://prntscr.com/c5eh9t <--- a screenshot of my desk, it has a pullout table with not enough room for me to lie my arm flat, does this matter? I see no one else with this and my arm levitates between the desk and my chair.