My PC came with a backing plate which is around 6" in diameter. I also orderd the lake country 6.5" pads. The problem is that the black velcro on these pads only measures aroud 5" in diameter so the foam is getting destroyed when i use the PC at high speeds. I need some recommendations of pads that will work with this backing plate or should i just bite the bullet and invest in the sonus flex plate and all sonus pads?