In watching the videos explaining the use of the knife jig, I noticed they were
making fine adjustments to setting the angle with the seat knob of the jig. In
the video there is a set screw to hold the knob once adjusted. My new T7 does
not have this set screw. Does anyone have an explanation for this?
Yes.
The newer knife jigs have an o-ring in the stop, which holds position and makes the locking knob unnecessary.