Had a couple of friends (including Vince Colaiuta),back at Brownsville high school that had Rogers swiv o matic and I despised the hardware .I remember the heel plate screws busted on the bd pedal and I had to use a screwdriver shaft on one side so that we could still use it at stage band practice.The drum throne broke and Colaiuta fell off backwards onto the floor and the metal worm screws on the tom holder used to strip out.I was never really in love with their drums as they sounded flat and a bit like cardboard.I found the Ludwigs overall a better sounding drum set.
you just did not understand how to use the hardware.... their foot pedals were always crap but their swivo hardware was and still is the very best hardware ever made with the most adjustments you just had to understand and maintain the hardware.
the reason screws broke is because people only tended to tighten one side or the other instead of tighting them back and forth AND when they did that one sided tightning it dulled the edge of the screws and they slipped so they tightened more till they broke all you have to do on swivo screw is redrill the top the side against the steel ball you just drill with a slightly smaller diameter bit to sharpen the edge, look at any swivo ball they all have hollow circles imprinted on the chrome that is from screws with sharp edges....
the reason Big R is less popular is they followed the best drums and hardware ever made and to a point Ploughman is right snobbery but i think it is more plausible that it is a comparison to the ugliest hardware ever made the drums sounded great but their was some quality control issues some sloppy fits and the wraps well were less than stellar.
Be happy you can get them cheap.... my dream is to find a XP8 kit with a 26 inch bass drum or better yet two of them...