That is for the blade mounted laser. The fixed type that are in the top
of the housing I've heard resolve this issue. So the Delta w/dual lines
(nice), and Crapsman shouldn't have this problem. I am not sure why,
just that I've heard they don't have this problem, and confirmed with
others that have the blade mounted that I am not alone.

I can say it is more than framing accurate...
But for the very precise use a test cut and stop block.... Which
eliminates more than laser error (minuscule ) compared to marking error,
and (my sighting error). Yes the laser line is more than a hair wide, so
your accuracy is compromised by that... but so is your line unless you
strike it with a marking knife.... Funny I used to use a knife all the
time... but I can't see the damn knife mark half the time anymore.... So
how many times do you need the most accurate cutoffs??? Is it for
repetitive cuts... 2 sides of a table ... use a stop block, you won't
have any question... or leave a hair extra and use a shooting board.

Keith wrote:

Re your respected comment....I guess this confirms what they say???

"Anyway the laser is accurate at the
top of the stroke... it changes as the saw is brought down"

K.