I'm certainly not gonna say there isn't a problem with the S35VN, but after reading this and a couple other threads on this and another forum, I decided to see how my recently purchased Small Insingo held up. For starters, just yesterday, I had used my knife at the firehouse to cut the couplings off four joints of fire hose without any issue. I didn't see any need to touch up the blade, as it was fine. This was one joint of 65mm line and three joints of 45mm. Not a big deal, but the three joints of 45mm were filthy from time served on the fire ground, so I suspect they were at least as abrasive as any cardboard one might pick up to do test cuts on. Just an hour ago, I went to my garage in search of a few things to cut up. I started with a couple inner cardboard rolls from wrapping paper, which I cut from end to end. Not a big deal, but it went without issue. I then went to the recyclable bin and grabbed a couple pop cans which I cut slices from end to end for anywhere from 6 to 10 cuts. Next, was a 10litre plastic water jug which I made several cuts into. Again, these went without issue and the knife still popped hair off the back of my hand. I'm not saying these are extreme cuts, but theyy're on par with what has been discussed thus far in this thread, so it shows your mileage might vary. I'm not done yet, though, as I went to another box and did similar cuts in the fashion Ankerson did in his video above this, eventhough I only did about 1/4 of the cuts he did. Still, the knife had no problem. I have a 31" BFG All Terrain that has been subject to different cuts in the past, so I stabbed the knife into the sidewall once, but decided against any more for fear of hitting any belts. That being said, the knife still had no problem taking hairs off my hand, eventhough the first 1/8" or so of the tip did show some slight deformation when held in the right light. Back to the water jug for a number of cuts and another box I picked up at the local Coscto for another dozen or so cuts. Again, without issue, so I grabbed another wrapping paper roll and made 5-6 cuts by folding the roll and cutting pieces off it. Finally, I went into the house, grabbed a piece of paper from the printer and proceded to cleanly slice through it for another dozen or so cuts. Other than the slight deformation which I mentioned earlier( I suspect that took place with the hose yesterday, but not certain), the edge was fine and still had the ability to grab a few hairs on the back of my hand and take them out.
Based on what I've viewed and read vs. what I just did, I'm not worried about my knife, anyways. My hope is that if there is an issue, knife companies will square it away, but I can't complain about my experience.