My Table Saw Aligner Jr. finally arrived the other day. Today I put it
on the saw and took some measurements.

The blade is 0.01 (10 thou) out of parallel from the miter slot,
measured from the front to the back of the blade with the blade raised
all the way.

I just measured the blade plate. I know you're supposed to measure the
same tooth front and back, but it's really difficult to move the blade
by hand and have it end up in the right place because of the belts. Is
this really a critical issue?

The fence is 0.02 (20 thou) out of parallel from the miter slot. The
back of the fence is further away than the front (which is the better
direction to be out by).

At these "close enough"? Are they worth worrying about to try and get
better or will I just end up chasing a level of precision that's not
practical to achieve?