Some awesome pieces of kit there...great video..HMMMN::: some of theses might qualify::
Stan
True.they are not without there issues to..as you said.a sticking caliper can be a right *** to sort..Discs and callipers are not without there problems. i've seen and worked on cars that have had sitcking callipers, sticking pistons, siezed handbrake mechs, etc. plus disk can warp etc.