Lubed wads for your cap & ball revolver is fine, quite a few of us "my self included" use them instead of the grease over the ball.
Just remember that the loading process is a little different.
Pre measured powder charge in the chamber.
Lubed wad over the powder, push down to make room for the ball.
your ball seated over the powder & wad to seal the chamber.
after you load all 5 chambers then cap them & you're ready to fire.