I've used lake country and propel pads. The LC's I like better on more curvy cars while I prefer the propels on flat cars. Don't get me wrong though, both pads can be used on the other type of car effectively. I like 6" backing plates with larger pads and 3" backing plates for small 4" pads. LC's can be had from autogeek, pakshak and other such vendors. Propels are from exceldetail.