1965 dodge dart gt disc brake kit

Have had cars with KH and 73 up single pistons calipers, KH dont seem to have as
much braking power even when everything is up to snuff, KH seem very prone
to sticking (had issues even with stainless steel pistons and DOT 5 fluid!) Also
KH rotors have less mass (good or bad?) you decide but it contributes to braking
power.