Hired an expensive Porter cord grinder for pre repair, this Wen does the same. Achieving a clean finish is mostly down to technique. Sure, it wobbles a bit when you dangle it, but it's easy to adjust the pressure, travel direction, tool orientation, arm movement, or RPM to stop it, and the same goes for the carrier's cable. Take all that with a pinch of salt, I just sanded <2000 sqft. Feet combined with any brand. My mistake with renting is that I sanded too much. Almost dust-free if youβ¦