Ok, I did some playing this today, and I kinda know where I am at. The plate that I was cutting has been cut on several times and was warped. I was cutting at .5 without THC. Some place it was cutting excellent, and where the plate was warped the torch drug the plate. I have a video that I am uploading. At the end of the video my compressor shut off and was only using the air left in the tank. Also in the video the plasma cutter is sputtering I think that is because of the slag in the plate.