All the test joints were made with the same jig and blade. The neat thing about the jig is you can just drop it on the table saw and make any size finger that is a multiple of 1/10"(the width of the saw blade). Each full turn of the crank advances the workpiece 1/10" because it is a 10 thread per inch screw. In the pic I did 1/10",2/10",and 3/10" fingers.
To make a joint with 3/10" fingers, I crank the jig to where the blade is just touching the parallel wood part of the jig. Then cut,full turnof the crank-cut, another full turn-cut-then three full turns with no cut-then turn cut, turn cut, turn cut, then three more full turns with no cut etc, etc. Haven't tried it yet but should be able to cut at least six pieces at a time.