Upscale wrote...
I've got a question about that. With this flipping technique, how exact i=
s
the entire cut? If you're really careful, can you use this method to make
exact 90=B0 cuts for a 24" span? If you were to use a square on this, wou=
ld it
show any variations?

Depends on your tolerance, but you can get it really close. The board has=
=20
to be flat, both sides must be straight and parallel, and the saw has to=20
be precisely aligned. But it can be done to within less than 1/32"=20
without too much headache, and to within 1/64" if you really try.