I've used one. They do the trick. As you say they are scary. As to whether to purchase a real dado set, it depends on how much you are going to use it. A good set is big $$ and probably not cost effective for the occasional job.

: This is more of a wood working question than a kayak building one.

: I bought a wobble dado blade from Harbor freight and finally need to use it.
: Here's my observations: It is difficult to accurately adjust the width of
: the cut.

: The blade is absolutely frightening to watch when the table saw is on.

: It's difficult to set up the distance from the guide.

: There is a slight curve at the back of the notch that's cut. This really
: doesn't bother me.

: The cut is good and clean.

: Anyone had experience with these wild blades? Should I go out and buy a real
: Dado setup?

: Looking for ideas...

: Roger

: Th