I was wondering why Tango, of all people, posted this. So. I honestly tried to watch the whole thing. I could NOT make it through the whole thing. I watched about 5 minutes of the first video and the last 6 to 8 minutes of the second one.
I will say that the weapon was doing everything the Glock guys say it will do. *shrug*
I don't know of one single situation when one would need to put 68 loaded magazines through a weapon - but I guess you can take solace in the fact knowing that your Glock 19 will be about 98% reliable if you ever have to do so.
Now, a melted guide rod is kind of an issue for me, personally. If it's not needed, why is it there? But, in Gock's favor, they proved that the weapon will still shoot, pretty reliably, without a guide rod in it.
Now, will the weapon shoot accurately with a melted guide rod and something "rattling around inside"?? Well, that is for you, dear reader, to decide for yourself.
Personally I have pretty much always said the damn thing will shoot no matter what abuse the moron behind the trigger has done to it. Now, will it shoot accurately and will it do what you need it to do, when you need it to?
I don't know. But I stand by the assessment that the weapon is not for me personally.