I know most of you guys don't deal with this but there are some that may. None the less, it is still good information.
I lot of older lightweight cars use a pressure switch to activate the brake lights. The problem is because of the light weight, the brake light doesn't come on until you jam on the brakes hard. Lighter applications of the pedal show no brake light. The advantage to having the brake light come on sooner should be obvious.
There is an easy cheap fix. Painless wiring has a switch that activates between 20-50 psi whereas a normal switch is supposed to activate between 60-120 psi.
The switch comes with an electical pigtail.
It took me about 10 minutes to install including the pigtail which I soldered and shrink tube wrapped.