My mistake...I was tired and wrote reciprocating not rotating

But the point is... it seems like alot of effort and cost for no reward
I know its not about performance (of the brakes) ... its about weight and wank factor

Charlie West used to drill out the centre of bolts and weigh the swarf to see how much weight he saved in an effort to make his cars/bikes lighter
Thats probably why his son was national hillclimb champ a few times... cause Dads a perfectionist/loony :)... (Much respect for Charlie and Gary)