whats wrong with laser? hmmm
laser is still young and not as developed yet while infra red i guess has already reached the peak of development.
so the more laser mouses ppl buy, the more revenue gets pumped back into laser research, and hopefully in 2yrs time laser mouses will be good.
but right now, laser is still not good enough for FPS, tho it may be good for designers who work with large desktops etc.
and i guess no one really cares much about FPS anymore, since everyone is going WoW or SC2.

and yes, the makers can go on and on about its 30G max acceleration, 75 inch / sec tracking speed etc.
but the reality is that no one really reaches that fast and low.

and for the jitters, they can say all the want about the way its held.
i can hold it fine and (sometimes) not have it jitter, but only in 1 spot.
what if i'm tracking a fast moving object and shooting at the same time?
well, bye bye accuracy.

also the copperhead laser sensor is different from the lachesis / mamba.
that should be pretty obvious with it being labelled as a 2G 2000dpi sensor.
but one difference is the CH sensor does not have the Z-axis tracking, only X and Y.
its the Z-axis that messes up the current laser mouses, from razer to logitech to whatever else, in that they dont track properly therefore require hard mats.