Poor brakes with no feeling

[squeak]

A reduction in lining area for the desired amount of retardation will raise the lining temperature. 
Taking lining  material from the actuator end of the shoe will cause an unnatural bending moment in the shoe.
The pedal travel will be increased as will feel.
Higher temps may result in brake fade at a point where lockup was previously experienced.
Racing may incur short frequent heat cycles but I would not like to come down a long mountain with reduced lining.
Well come to think of it I have