In my experience, the Adams MF pads teamed up with the Rupes 21 cut really fast. It does tend to create quite a bit of heat in the process too. If this is the only machine you have, you'll have a difficult time correcting smaller panels as the throw is just that much more significant. Like Joseph mentioned, the PC with a 4" backing plate or the Cyclo, are awesome compliments to the Rupes. I personally have all 3, which isn't necessary for a novice, but I seem to always run into a situation where I need one of the 3.