The latest Fine Woodworking on news stands now has a review of table saws (cabinet and hybrid) where the author tested miter slot/blade parallelism at 90 and 45-degrees. I was surprised to see many of the saws showing a difference of .01" and more between these readings.

That is enough that an owner would want to adjust the trunnion. I have only seen trunnion adjustments mentioned when it comes to contractor saws, so this kinda surprised me.

Furthermore, I thought hybrid/cabinet saws were immune to this problem due to their design (assuming they were manufactured correctly).

I'm not going to post all the results, as I think that would be unfair to FWW magazine. However, the Craftsman hybrid (as an example) showed a .01" difference.

Anyone ever test their saw for this difference, or is everyone assuming it is a non-issue because of what they've read?