If we were to do it again, we'd probably have purchased the aluminum hubs from Dr. Diff. They would be lighter than the ones we made. But at the time, he didn't have any available. The cost to machine the discs off the brakes to create the hubs was about the same as purchasing a pair from Dr. Diff.
From a weight-savings point of view, though, the aluminum hubs savings over the steel hubs is the small end of the hammer. The GT500 discs weigh 26 lbs each.....
