id imagine I have spent over 2 & 1/2 hours sanding this cylinder of the aluminium transfer and damage. I started at 240 until everything was clean and worked up to 1200 grit. Here is a video, watch it in HD The cylinder is smooth without feeling any ridges or anything. In one of the pictures you can see what look like bad vertical lines, but they are perfectly smooth and aren’t ridges or valleys, you can’t feel anything with your fingers. I really don’t know, but what do you think? I also used polishing compound and a felt wheel on a dremel to remove the carbon in the exhaust port (NOT THE CYLINDER) followed by 600 grit sandpaper to get the stubborn stuff. It took quite some time but came up nice! Would you be happy putting this in your saw?