I had to learn to not use brushed at all..not because I was worried it would hurt but my Vudoo simply doesn’t like a deep cleaning for whatever reason. I do clean the chamber with c4. I use a borescope to make sure the ring is gone then I clean it just like the latest video. I use the felt rounds and a patchworm string and boretech. I clean after every match or range session. After I started doing this my gun was more consistent and repeatable. Some matches I go to you don’t get a zero check. I need it to shoot as soon as I pull it out of the case. The first 3-4 shots will go a touch, just a touch high and to the right. You can see it on paper but I never thought it caused me to miss in a match. Long story short, I saw the last video, tried it, and it made me and my gun more consistent.