Here's another video I did on how to make paper cartridges using a former. Now in the video, the former I use is one that I made. There are several formers on the market currently. If you are thinking of giving it a try, I highly recommend it.
The cartridges are nice and tidy when made this way. They really don't function any better, except for possibly being a little easier to load. But they definitely look better.
https://youtu.be/HQk2X-E_AsQ