What is the preactical difference between this operation and cutting tenon cheeks with a tenoning jig on a table saw? I've watched demonstrations of this operation by Steve Latta and others that seemed safe enough to me.( haven't used the method myself, because I prefer to cut mine with a backsaw and chop them out with a chisel. I have used the bandsaw meethod, but it requires more cleanup vw. the table saw. Also, my SawStop doesn't work with a small diameter, inexpensive Diablo blade.
BTW, you don't need two mirror image blades. Just turn the work around against the tenoning fence to cut the opposite angle. Whatever stop you use to get evenly spaced dovetails works equally well in both directions.
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