Well i just got back from Batangas, and of course i stopped by barrio balisong on the way. I just got eight balisongs which i'm going to post in a while when photopoint receives my scans.
You'll be surprised that not many filipinos here carry balisongs and even other knives for that matter. It's probably the same situation there anyway.
Several batanguenos (batangas native) do carry balisongs with them. Most of them are old balisongs (special or heirlooms maybe) and not those rambo design balisongs. Since it's common in batangas, their balisong has to be different from the others. The only way to do this is to have one custom made. So it's basically like this, batanguenos carry special balisongs and other filipinos if they have balisongs carry the ordinary ones.
If you buy a balisong along the highway, you'll probably see the tourist balisongs but some of them looks pretty decent enough with bearing blades as they say. You can still have one custom made in the barrio itself, according to whatever specifications you have. Right now they have have an all stainless balisong, i tell you they look very very nice. But like in the states, you have to pay for quality, and those all stainless balisongs costs 5 to 10 times more as the ordinary ones. I just got a semi stainless one, the blade and frame are stainless but the bolsters (i don't know if that's the right term for balisongs) are brass. You have to remember that the people who make this balisongs have very limited and outdated equipment, so putting out quality balisongs is very hard, but they can probably still put out excellent balisongs if you give them the materials (quality steel), the specifications, and the money of course.
The common balisongs now has inserts like, plastic, narra wood, horse bone, mahogany and deer horn, and that's ascending in price. You don't have to custom order a batch. They are not bringing this out in machines or anything, every knife is handmade. Actually you can have a custom made balisong with almost the same price as ordinary ones, as long as the materials used are the same.
A batangueno will be able to tell a good balisong when they see it, i just showed them my BM42.
-Paul