There are a few factors on how you are using your greaseless. First off there is the wheel and then there is how much compound you put on the wheel and a really important factor is pressure. If you use a feather touch you will get a much nicer finish. There is also water. A quick dip does not only cool the blade but lubricates it too. It takes a lot of practice to be very good at the buffer. I consider myself to be at the beginning of the curve. That is part of why a I don't use it a lot. I did buy a small lot of junk blades to practice on. It is very easy to kill a blade on the buffer. I am not merely talking about the obvious overheat either. You can kill the lines and ruin the shape. You can also have the blade tossed. Slow and easy goes a long way.