I can't tell the thickness of the wood you are using. If you are using 1/4" thick wood then the Flying Dutchman puzzle blade is the best blade I have found.
If you are using 3/4" thick hardwoods such as cherry, walnut, and maple, the best blade I have found is the Pegas Modified Geometry #3,5,and 7. I have tried em all and switched to Pegas some time ago.
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