Don’t know if you’re just looking for maintenance or other tips too. On Ernest’s other video, when it was still posted, he showed how to chamfer all the holes in the cover plate and back side of the rotor. It makes loading easier with the King Heavies. He also shows how to make the spring so it’s not wound as tight which helps when pushing the pellet into the breech. I used a cone shaped bit with my Dremel for the cover plate and a cylinder shaped bit for the rotor which made it fast and easy. Just go slow and don’t take off too much material. It does help. Good luck! Stoti