My 25-9 came from Smith with the front blade forged/cast .007" off center, not canted, but visibly off center on the front ramp. I could see the difference in the width of the flats on either side of the blade. My 27-2 came with a canted barrel. I didn't notice it until my rear sight went way right to get a zero. A front blade a few thou off at 6" - 10" from the rear leaf makes a big difference at 900" (25 yds.)
Make some careful measurements to satisfy yourself, and if in doubt about quality, send it back to Smith. You paid a bunch of money and deserve value for it.