Kelly, I got a PRW flywheel from the same source you got your parts when you re-did your engine. There was pieces of ring gear metal in the box and it was pretty badly scratched when I unwrapped it. I'd stay clear of them, I had to have it resurfaced. I also have the dual friction but don't have it in the car yet.
By the way I took the 428 to the dyno last thurs. but I forgot the camera, I'll send you the results. Al.