You can't really test the AMA mode in games unless you are dealing with a lot of black to white surface transitions (or vice versa).
You usually don't want to use the new AMA mode (with blur reduction *ON*) in 3D shooting games, because while it removes INVERSE ghosting almost completely, it adds NORMAL ghosting, like you are using a too low AMA level. Normal ghosting is increased when contrast is increased, so you usually have to lower the contrast to less than 20 for the normal ghosting to get reduced enough. An example is if you were playing a game with a grey or light blue sky and there were black telephone wires in the air. With the "normal" AMA high with blur reduction on, you would see a faint 'inverse' copy of the wires, and an even fainter second inverse copy--which is often called the primary trail and the secondary trail (meaning, a glowing type white translucent copy), and you might not even notice it at all.
For blur reduction on, on the XL2720Z, the default AMA setting for blur reduction high is actually rather good. I think its worse on the 24" monitors, however. Masterotaku's photos with AMA high from his XL2411Z looked as bad as my AMA premium.
Back to my example about telephone wires being shown while looking at the sky in a FPS shooting game (CS:GO, Call of Duty, etc):
normal AMA high: main black wire, translucent inverse copy (white'ish), translucent secondary inverse copy (faint).
However if you used the new AMA with blur reduction, at a normal contrast of 40-50, you *would* see a normal ghost copy of the wires, just 1 ghost, but it would be the same color as the main black wire, just fainter. But it would be rather obvious on your screen and might stand out far more than the translucent copy would. However you would not see a secondary trail at all, just a really think primary normal ghost copy. it is quite nice to have the secondary trail not visible! If you reduced the contrast to 10, the primary trail (the normal ghost) would be very faint, and might look much better overall than the original AMA with contrast 45 and the translucent copy, but you pay a price for that--greatly reduced contrast.
HOWEVER in 2D side scrolling games, that are not 3D games and that have a lot of medium colors scrolling around, THEN *inverse ghosting* becomes a MASSIVE problem. In this case, you would gain a lot by doing the AMA low toggle, even if you don't reduce the contrast, simply because the inverse ghosting would be far more blatantly distracting than any normal ghosting
The Test UFO/ alien invasion test is a very prime example of this, and why you should test this in that test right here:
http://www.testufo.com/#test=photo&phot ... &height=-1
When you test it, test the new AMA setting, and also test the effect of lowering contrast after doing the new AMA setting.
Remember that ANY change to strobe phase, strobe duty, Single Strobe on/off or the monitor Brightness setting (but not contrast or gamma) will instantly revert the AMA.
HOWEVER IS BLUR REDUCTION IS OFF, YOU SHOULD ALWAYS--Always---always--ALWAYS toggle the AMA. EVERY time, but remember you have to "combine" the blur reduction AMA low toggle with a blur reduction off profile switch (which I explained in full in the VT tweak thread I made). There is absolutely NO drawback to it. Why?
Because blur reduction's OFF's AMA high is FAR FAR FAR more excessive and horrible than blur reduction on's AMA high.
tl;dr: blur reduction off AMA high looks like blur reduction on's AMA premium. (probably worse actually!)
So applying the AMA low blur reduction "on" tweak to blur reduction off (which you do via a profile switch bug) makes a MUCH bigger and literally perfect difference. The reason you HAVE to toggle this through a gamer profile preset (although you "could" hold down the "enter" button on the S-switch for 10 seconds, to go directly into standard mode--this isn't listed in the Benq manual btw), is because NONE of the AMA toggles work with blur reduction off. They only work with blur reduction on. And disabling blur reduction on the OSD will instantly use the default AMA high value for MBR off. However--doing a profile change AVOIDS the AMA being recalibrated when going from MBR on preset to MBR off preset (bug!)
Heres an example to show you, at 144 hz (a refresh rate you shouldn't use blur reduction at anyway, due to crosstalk covering half the screen).
144hz: Blur reduction off, AMA high (default settings) XL2720Z
144hz, blur reduction off: AMA low "bug" toggled into a blur reduction off preset, after activating "AMA low" with blur reduction on first:
^^ This blur reduction off AMA improvement shows that you should ALWAYS ALWAYS toggle the AMA via the profile bug if you are not using blur reduction. the quality improvement is massive with NO drawbacks. It's even more massive at 100hz and at 60hz...it's like comparing a $50 monitor with a $1000 monitor (it's that improved).
