Call me ignorant, I never hold my gun tight all this time. In the 80s, there is no forum to talk, I was totally on my own learning how to shoot. I always try to relax my hands to avoid anticipations. So it's always limb wrist. I was so surprised when I talked to my friend lately that I am supposed to squeeze the gun to shoot!!! I yet to go shoot holding the gun tight yet.
Maybe that's the reason I had problems with my Gold Cup, Walther PPK and S&W659. That's 3 out of 5 guns!!! BUT, I fixed them all myself. I am NOT a gun smith, but like I said before, this is no rocket science. There is only so many things that goes wrong in FTE.
1) Angle of extractor not right.
2) Angle of ejector is not right.
3) Recoil spring too strong.
4) Ejector port not smooth.
I don't want to say for new guns now with CAD design and CSC. I have to see the problem to analyze it. In my days all can cause problem, I had to work on 1,2 and 4 to fix all my guns. Obviously the new guns are designed different. For one, the ejector ports are made a whole lot bigger than the old ones I have. That really solve a lot of problems.
But from reading, with small semi, the recoil spring is very critical. You choose a stronger recoil spring to dampen the recoil. But too tight the spring, a weaker round cannot push the slide completely to the back and can cause FTE and FTF. That would be the first thing I would look at.
Like I said, I am not a gun smith, but I am SURE I can fix it if I have a gun that has problem. If I can do it, I am sure any manufacturer should know better and can fix it. It's the pride that they refuse to admit they have a problem. And YES, I called out Kahr for the youtube.
I know people all said Glock is ultra reliable. I have not shot my Glock 26, but I cannot help but a little concern the recoil spring is very tight because it's a smaller gun with smaller slide. It is tighter than my S&W659. You need the mass of the slide to cycle the gun after firing. When you have less mass, you have to make up by using a stronger recoil spring both for felt recoil and protecting the frame from the slide slamming too hard. The recoil spring becomes very critical. If the spring is a little out of spec, you can have problem. Glock 26 uses a 16lbs spring. I am even thinking about buying a 14lbs spring as spare just in case.
I am purely speculation at this point. But I would look at the recoil spring first instead of coming out and blame on the shooter.
JMHO