With nothing else better to do on a New Year's day holiday
I put one of the Batangas balisongs under the acid test -- the piercing of the local one-peso coin via the blade's tip.
The long and short of it is that it's so far so good (pic below).
I think though that I lack the technique because the coin is supposed to be pierced through to the other side. My furious stabbing of the defiant coin pierced the coin only halfway at best!
I don't have a good camera with me at the moment thus the pic below is crappy. But the tip of the balisong even after that mindless
stabbing episode remained sharp and pointy.