I recently began doing some minor corrections on my black sapphire BMW, however the results are less than expected. The car had light swirling, water spot etching, and random scratches here and there. None of the imperfections can be caught on your fingernail and most need to be searched for to really notice, unless directly in the sun. I started with a thorough was with the lance and Chemical guys CW&G, which is great, and followed it up with the claybar. The products I am working with are the XMT line, #3, #2, 360, and CCS orange, white, and grey pads. I started with a test section with the 360 and white pad, and the results were not very noticeable. This was most likely due to technique, but I tried tried to duplicate the instructions accurately. I then did another test section with the #2 and orange pad, this time applying just enough pressure to allow the da to still spin on speed 5, and I did 5-7 passes until the polish was left looking like dried milk. After this the results were better, the fine swirling was gone, however the light random scratches and water spot etching was still there. Like I said, there is nothing deep, but they are able to be seen under the light. Am I over estimating the level of correction I can get with the DA, or should I step it up to the XMT #3 with the orange pad? Being new at this, I don't want to harm the clear, or try to polish imperfections out that are not possible to remove. I tried to snap some pictures, but I was unsuccessful showing the defects. Anyone familiar with the XMT line that could comment or advise? Thanks