You can see in the video after he’s hammered that piece of pipe compared to the one in your picture of your original installation. How much the rope is compressed. Also when I say fill in the divots you can see there’s no way outer edge of the divots can be filled in, so it still helps stop ration. The pipe or what ever he’s using is a good idea, but you can achieve same thing with a rolling pin. That looks like kid of a special tool for doing it. Because of the diameter of the rolling pin, you could also tap it with a hammer, its a good video though gives you a good Visual of how compact seal needs to be.
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