For some years I played with high DPI, low sense, like the OP lists, but recently I saw Haruhi say low DPI is better (Although that ET Freak of nature uses 400 DPI, 1.5 Sens and 3 desktops for arm movement) because I never knew the difference. I thought, if I lower my DPI and I have to raise my sense, what's the difference, until Saurus explained it the other night. Lower DPI compensates for inconsistencies in mousepad, desktop surface that translates incorrectly to game play. So I dropped my DPI from 1200 to 700, using the same sense - 2.5 - and dropped my mouse clicks to 4 and it HAS made my mouse movement much smoother. Yes, it also forces me to move my arm more, which I'm a wrist only player.
Also, switching to my 32" LED TV instead of a 21" 16:9 monitor and changing my sense form 105 to 120 helps a lot, too. Although I know not everyone can do that, but still, I totally disagree on the 1150 DPI the OP posts
If you wish to change your dpi, then there is always a mouse sensi that will make you move your arm as much as before (same cm/360). The mousepad inconsistencies shouldnt be noticable enough to make much of a difference anyways unless your dpi is way too high. Up to ~1600 dpi is perfectly fine unless your mousesurface is a doormat or something
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