I'd consider them the same as the LC also. The Sonus blue finishing pad is much denser than the LC pad. So I prefer the Sonus blue for polishing and LC blue for wax/sealant applications. I think the Sonus yellow cutting pad is one of the best cutting pads for use with a DA machines. It cuts alot and doesn't haze nearly as much as the LC yellow equivalents I've tried (Autogeek/CMA/CG).