I used a Khukri and a modified/heavily reworked Kris Ninja-To on my first one, this year. While it is no longer suitable for display as a Jack-O-Lantern, unfortunately, I am happy to report that I got one of those beautiful, perfect tip cuts that you read about now and again...
Very satisfying to look at your target...to KNOW you hit it...to not see a mark on it, while your wife points and laughs at you...and then to watch the top half of the pumpkin just sort of slowly sliiiiiiide right off and topple to the ground.
Most gratifying. And I probably couldn't do it again if I tried. Certainly not with an audience! But once was enough...yeah, right...I don't NEED to do that...I can stop ANY time...*TWITCH* *Giggle* *TWITCH*
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Vaya con Queso!!!