Swapped to disc and now horrible scraping Help

Yes, that is what Scarebird now says to do. Use a belt sander to remove the metal plate on the pad where it is rubbing. we will see how it goes. Still concerned about the groove in the Rotor hat, but I guess no big deal.
A hunch tells me the Caliper or engagement of pads isn't running perpendicular to the Rotor/Axle...
Just a thought (check the Mating surfaces of the Adaptor/Carrier plate to the axle upright for a burr, dirt etc)
Cheers Trev.
(Been involved with brake shop specialist & you'd be surprised what little thing out somewhere else has an effect down the chain of actuation etc)