assuming mtb then you should be using speed dial levers really.
to set up either then back the pads right out and loosen off the bolts holding the caliper.
then wind in the none moving side 2 clicks for every 1 click from the cable attached side.
Eventually the pads will be tight against the rotor and there will be no movement.
Now torque up the caliper bolts.
then equally back of the pads with the same number of clicks each side.
and that should be it.
if they are road bb7s then you will need a close-ish gap from the pad to the rotor, but if they are mtb then the gap can be bigger and you can use the speed dial adjustment to increase the leverage at the lever, so you have a larger gap and less issues with rubbing when mud gets in there.
You should be able to get one finger braking easily.