Lubricate Loaded Calipers? Brakes dragging intermittently

TrailBeast said
I don't think they would release at all if that was the problem.
He said if he stomps the pedal it will let go.

I thought I was probably the only one that ever did that. :D
I tap my big blade screwdriver in there between the rotor hub and the bottom of the pad backing metal, then tap the top tabs down tight to the caliper.

I've had to file fit several pad backing plates to fit calipers too. Those plates are stamped out rather than machine cut and may be half *** de burred. Of course the lower the cost the more likely the retouching.