I have a Woodcraft model. It sits there gathering dust while I use one very similar to the one that woodnthings made. Mine rides along the Biesemeyer fence.
I got a rather good deal when I bought the jig from Woodcraft but with 20-20 hind sight, it was money wasted.
One of the magazines had the plan for my tenon jig. (Don't remember which one.) It was a free-be. I would say to build your own. The concept is simple and the most difficult part is putting a fence on the jig that is perpendicular to the table.
I got a rather good deal when I bought the jig from Woodcraft but with 20-20 hind sight, it was money wasted.
One of the magazines had the plan for my tenon jig. (Don't remember which one.) It was a free-be. I would say to build your own. The concept is simple and the most difficult part is putting a fence on the jig that is perpendicular to the table.