I am a 60fps maniac. (considering Vsync limit)
I call it stutter when the game do not maintain 60fps and goes to 50 fps or little micropause when turning my view with TIR4.
I think the writer is a guy like me.
With E8500@3.16 , 4G ram, 8800GT, and SLC SSD setup,
FINALLY it's stutter free & 60-fps game for me even with perfect & large mirrors on.
It really is until Water=2 setting.
But STUTTER STILL EXISTS especially in Water=3 or Water=4 for me when slewing view with TIR. I don't know why it happens and thought I'd need GTX280 but I like water=2 so it should be no problem for me anymore.
It goes down to 40fps when I look down over sparkling water( in 3 or 4) and it seems like my VGA is bottleneck.
One last remaining fix wish is WARPING CLOUDS REFLECTION OVER WATER in perfect mode. Other than that, IL-2 sits in fps nirvana.
We too have little pauses with water=3 or 4
It seems Water=3 and 4 is still FOR FUTURE VGA.By the way, don't use forceware 181.20 which is new, it was so much terrible in IL-2. Stutter in every scene.
I recommned 180.48.