Super Wheel Cylinders in Rear Drums

[KaferChris]

I've heard that you can put the larger bore SuperBeetle front wheel cylinders onto the backing plates of stock rear brakes to make them perform better. I would like to know if there's any truth to this and if so, what is necessary?

On a completely different subject has anyone experience redrilling rear Type III drum hubs for aftermarket patterns?

Thanks, Chris