I have never come up with a jig that I liked that produced a tenon in a reasonable amount of time.
I always end up at the table saw with a miter guage and a stop block.
Most of the time, I end up with a pretty fair tenon but because of the amount of movement in the tablesaw method, you can end up with a tenon that is not "exactly" like all his brothers.
A good case in point is right now....
I'm building a coffee table for an aunt of mine.
She just had to have a "Mission Style" with all those damn slats in the ends of the table.
That means 14 slats(7 per end) with 28 very small tenons.
The slat material is 1 1/8 " wide and 1/2" thick.
That means I end up with a very thin 1/4" tenon and very small shoulders. It also means I need to cut 28 very small mortises.
I keep thinking that there must be a router jig that is suitable for this operation, but I don't seem to ever find one(other than the Multirouter or Leigh M&T jig) that would work for assembly line processing.
What do all the troops use for this operation ????