This stuff feels like Stihl chain to sharpen. I'll probably use a few more files than I'm used to.
I wonder how much variation exists in the same type of chain. Different manufacturers in different countries, even the same factory using different batches of metals and variation in production techniques can change things. I like this chain, but if I got some more from a different roll, would it have the same characteristics? After getting those weak loops of VPX chain I remain cautious, but how do I deal with it, purchase one loop to test it and then purchase more? Hopefully, that VPX was just a fluke.