Glad to hear it worked. I wonder why there aren't videos on the technique. My way is to use a 6" wrench and twist the arm with the pads still on. That way, I can see my progress as soon as I let go.

Actually, I do know why. New style calipers are not made for twisting, and it's not necessary because of the spherical washers that come with brake pads. But your style brake is old, hence the advice I gave (and worked).