When your tape lets go and the board twists , it will kickback at you and that will hurt. Take the hour or so and make the jig and be safe. Order the toggles online, since I don't think H-F carries them any longer .... I donno? :vs_cool
I know, and I am acutely aware of it. Here is what I do to mitigate the risk:
* I use many pieces of tape. Most people would consider it excessive, but I like the assurance.
* Each piece of tape spans the full width of the board to be jointed. They are not merely short stubs near the edge.
* The wood is well supported throughout the cut.
* When making the cut, I press down firmly with two push blocks. I do understand that pressing down hard makes it more difficult to slide the boards through the cut, but I have not had a problem with that.
* I stand to the side when guiding the cut. My jobsite saw allows me to this safely and easily. It might not be possible or safe with a wider saw table.
* I hate to say this, but if there is a kickback, the board will be ejected into a cinder block wall.
The honest truth is you are absolutely right. I should build the sled (and several other sleds). My problem is it takes willpower to avoid "I need it now, so I will do one more jointing the old way." That's especially true when Spouse is waiting for projects to complete, ready to hang. I have several projects in progress now, and the weather has not cooperated.
Someday I would like to have a simple jig that uses a hand plane to joint the boards. It would avoid the table saw altogether. A true long bed jointer would be nice (I shared one with a roommate a long time ago), but I don't have the space for it right now, so I get by with other solutions. I bought a planer first, and have never regretted that choice.
P.S. Skilled woodworkers can clamp a board, manually run a hand plane along the edge, and get a perfectly straight, 90 degree jointed edge when they're done. Furthermore, they do it without removing a lot of wood.
I keep practicing on scrap, but the skill eludes me. I will keep practicing until I am gone. Someday perhaps. In the meantime, I think a hand plane jointer jig is the future solution. My manual hand plane problems are:
* I can square up portions of the edge, but a perfect square edge end-to-end is a challenge.
* Even if the edge is square, it must also be straight from end-to-end. That is a challenge, too!
* Finally: There is no board left when I manage to achieve that perfect edge. :-(
Practice, practice, practice.