Review on EBC Brakes FA83R Disc Brake by Jeremy Meza

I bought these based on forum discussions that said it was the EBC part number for the RZR 170 front brakes. They are FAST. They mate perfectly with the caliper brackets and all, but they're flat on the bottom and the factory ones are dished. The 170 hubs are ribbed so that after installation, the hub ribs touch the underside of these pads. Does anyone know if EBC has exact size brake pads with an arc on the bottom? Note: The 5 star rating is because these are good pads, but I can't justify a bad star rating if they don't work for my application.